{"title":"Amplifiers \u0026 Board","description":"","products":[{"product_id":"dc300-full-balanced-bluetooth-5-0-dac-dual-es9038pro-dac-headphone-amplifier-assembled-hifi-version","title":"DC300 Full Balanced Bluetooth 5.0 DAC Dual ES9038PRO DAC Headphone Amplifier Assembled HIFI Version","description":"\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/69340\/69340-01.jpg\" style=\"width: 800px;\"\u003e\u003cb\u003e\u003cbr\u003e\u003cbr\u003eDescription:\u003c\/b\u003e\u003cbr\u003eIt is updated to version 2020, which has better AP test indicators, including lower SNR and lower harmonic distortion. The sound quality is purer, the level of detail and the sense of air are also improved.\u003cbr\u003e\u003cbr\u003eThe actual sense of hearing and details are better than that of many AK4499 machines. The price of a single chip is also higher than that of AK4499. 2pcs ES9038PRO overshadow AK4499.\u003cbr\u003e\u003cbr\u003eDC300 is the flagship decoder, and there are huge differences in design and materials from some ES9038 decoders on the market. This product uses transformer for TALEME, with good background details. Voltage regulator is LT3045, which is currently the lowest noise voltage regulator device in the industry. Generally, other manufacturers only use LT1963, and the noise error is more than 10 times. The sound field, positioning and air feel of output op amp are excellent.\u003cbr\u003e\u003cbr\u003eLarge-screen OLED true color display. ES9038PRO has 8 cores, 2 channels totaling 16 cores in parallel for decoding output. It is normal that the temperature is a little higher than that of general 2-core decoders, and it is a very safe operating temperature range. The product uses two pieces of ES9038PRO as the core. Note that it is ES903PRO, not a simplified version of ES9038Q2M. There are 8 DAC cores in one ES9038PRO, but there are only two in one piece of ES9038Q2M. Therefore, our decoding chips boasts higher analytical power and details.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDC300 User Manual: \u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/pan.baidu.com\/s\/1QS5HHyBGQ7Lmc1jmD9fGeQ\"\u003ehttps:\/\/pan.baidu.com\/s\/1QS5HHyBGQ7Lmc1jmD9fGeQ\u003c\/a\u003e  Password: b2xv\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAdvantages:\u003c\/b\u003e\u003cbr\u003e- All aluminum alloy shell \u003cbr\u003e- Lossless audio format\u003cbr\u003e- DSD hard decoding\u003cbr\u003e- Line output\u003cbr\u003e- Compatible with multiple PC systems\u003cbr\u003e- Support headphone monitor\u003cbr\u003e- For APTX-HD\u003cbr\u003e- Bluetooth 5.0\u003cbr\u003e- High-end decoding chips\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- Transmission modes for APTX-HD and LDAC guarantee sound quality\u003cbr\u003e- Digital Bluetooth DAC headphone amplifier\u003cbr\u003e- Treble and bass preamp and integrated Bluetooth 5.0 CS8675 receiving solution, truly support 24BIT lossless transmission for APTX-HD\u003cbr\u003e- Audio technology ensures that wireless Bluetooth devices can provide HD audio\u003cbr\u003e- Technology for APTX-HD can protect audio data during audio transmission, providing a listening experience better than CD\u003cbr\u003e- Bluetooth 5.0 connection is more stable, transmission distance is longer, power consumption is only half of BT4.2\u003cbr\u003e- Easily connect to mobile phones, computers, and tablets\u003cbr\u003e- Imported fully sealed transformers for Talema, with plenty of energy, excellent transient and strength, low interference, and the input is equipped with EMI\u003cbr\u003e- The circuit makes the characterization of musical instruments, especially the hierarchical performance of musical instruments more ideal and cleaner\u003cbr\u003e- Equipped with balanced output and RCA output port, 3.5 headphone output port\u003cbr\u003e- With a remote controller for easy operation\u003cbr\u003e\u003cbr\u003eUSB digital decoder board directly engraves the same program as that for Amanero USB IIS digital interface, and the effect is very good. It is more delicate than solution for XMOS and supports DSD.\u003cbr\u003e\u003cb\u003e\u003cbr\u003eDownload Driver:\u003c\/b\u003e\u003cbr\u003eFor versions below WIN10:\u003ca href=\"https:\/\/pan.baidu.com\/s\/14hGsffUyEePSgtcx1gH6yQ\"\u003ehttps:\/\/pan.baidu.com\/s\/14hGsffUyEePSgtcx1gH6yQ\u003c\/a\u003e Password: da0w\u003cbr\u003eFor versions below WIN7: \u003ca href=\"https:\/\/pan.baidu.com\/s\/1FRe6wfaLZzAOrV80VU51yA\"\u003ehttps:\/\/pan.baidu.com\/s\/1FRe6wfaLZzAOrV80VU51yA\u003c\/a\u003e Password: qzjg\u003cbr\u003e\u003cbr\u003eInformation Reference: Link for \u003ca href=\"http:\/\/amanero.com\"\u003ehttp:\/\/amanero.com\u003c\/a\u003e\u003cbr\u003eDriver Download: Link for \u003ca href=\"http:\/\/amanero.com\/drivers.htm\"\u003ehttp:\/\/amanero.com\/drivers.htm\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Machine size: 316*62*248 (excluding terminal size)\u003cbr\u003e- It only supports I2S output (also for DSD)\u003cbr\u003e- Supported Sample Rates: 44.1Khz, 48Khz, 88.2Khz, 96Khz, 176.4Khz, 192Khz, 352.8Khz, 384Khz\u003cbr\u003e- Output Format: I2S 32bit or DSD64, DSD128 - On Windows DSD256, DSD512 too\u003cbr\u003e- Oscillators: 2 Low Phase Noise TCXO\u003cbr\u003e- Dimension: 30x69mm\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote:\u003cbr\u003e- DSD output enable line to signal an incoming DSD stream. The card supports output mode only.\u003cbr\u003e- NO Drivers needed for Mac OSX 10.6+ and Linux with UAC2 compliant kernel.\u003cbr\u003eKS\/Wasapi\/WDM\/ASIO Drivers for MS OS XP to Win8 32-64bit included at no fee.\u003cbr\u003e- Upon Request: The user can provide a custom USB VID-PID, a custom Device Name and a custom CodeSign. Certificate for WDM drivers. For old applications the max sample rate can be configured to 192Khz.\u003cbr\u003e- It is assembled and ready for use.\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eTechnical Index:\u003c\/b\u003e\u003cbr\u003e- DSD512, DXD 384k. \u003cbr\u003e- Supports DSD Native (source code) and DoP dual mode.\u003cbr\u003e- DSD Native and ASIO can support very high audio specifications, and DoP is basically unnecessary.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Set of DAC Headphone Amplifier\u003cbr\u003e \u003cbr\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/69340\/69340-02.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/69340\/69340-03.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/69340\/69340-04.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/69340\/69340-05.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/69340\/69340-06.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824535285809,"sku":"62061","price":501.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076789944369_watermarked_0.jpg_0.png?v=1768041706"},{"product_id":"50w-50w-tpa3116-bluetooth-amplifier-digital-power-amplifier-board-bt5-0-advanced-version","title":"50W+50W TPA3116 Bluetooth Amplifier Digital Power Amplifier Board BT5.0 Advanced Version","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- Ready to Use: It is assembled and tested \u003cbr\u003e- Excellent Performance: Adopted TPA3116D2 high-efficiency amplifier chip \u003cbr\u003e- Wide Working Voltage: Single power supply DC 8-25V\u003cbr\u003e- High Efficiency: Dual channels output 50W+50W, with efficiency over 90%\u003cbr\u003e- Power Supply Needed: Switch power supply, tablet PC power supply, levels and car power supply can be used with the amplifier board. Port for power supply 5.5mm standard interface. Power supply: DC 8-25V. \u003cbr\u003e- Bluetooth 5.0 for stable and further transmission, featuring lower power consumption \u003cbr\u003e- Lossless Transmission: It can be connected to your smartphones, computers, tablet PC for CD-level sound \u003cbr\u003e- Further Expansion: 75x60mm space left at the end of PCB for connection with the output terminals of your speakers\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQuality Components:\u003c\/b\u003e\u003cbr\u003e- QCC3003 Bluetooth module \u003cbr\u003e- NE5532 operational amplifier  \u003cbr\u003e- Fully sealed dust-proof potentiometer \u003cbr\u003e- Large aluminum alloy heat sink \u003cbr\u003e- Premium filter capacitors imported from Japan \u003cbr\u003e- Large sealed digital amplifier inductors \u003cbr\u003e\u003cbr\u003e\u003cb\u003eVoltage of Power Supply:\u003c\/b\u003e\u003cbr\u003e- 12V - 8ΩSpeaker\/12W (Left Channel) +12W (Right Channel); 4ΩSpeaker\/20W (Left Channel) + 20W (Right Channel)\u003cbr\u003e- 15V - 8Ω\/18W+18W; 4Ω\/\u0026gt; 30W+30W\u003cbr\u003e- 19V - 8Ω\/32W+32W; 4Ω\/\u0026gt; 45W+45W\u003cbr\u003e- 24V - 8Ω\/38W+38W; 4Ω\/\u0026gt; 55W+55W\u003cbr\u003e\u003cb\u003e\u003cbr\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Amplifier Board \u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003e\u003cbr\u003eNote: \u003cbr\u003e- Its switch is used to cut off output, instead of power supply. \u003cbr\u003e- Please connect your power cable to the amplifier board first, and then connect the cable to the mains socket. \u003cbr\u003e- Power supply is not included in this package. \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824535384113,"sku":"62063","price":50.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076790042673_watermarked_0.jpg_0.png?v=1768041692"},{"product_id":"sda-2a-audio-dac-amp-headphone-preamplifier-nos-native-decoding-384khz-dsd512-ak4497-standard-version","title":"SDA-2A Audio DAC Amp Headphone Preamplifier NOS Native Decoding 384KHz\/DSD512 AK4497 Standard Version","description":"\u003cp\u003e\u003cb\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003eDescription:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003eSDA-2A DAC Headphone Preamplifier is the standard version. The clock of its USB part is built with ACCUSILICON femtosecond crystal oscillator AS-318. \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- It is a high-performance HiFi audio decoder headphone preamplifier. \u003cbr\u003e- XMOS's latest xCORE-200 series chip is adopted as the USB Audio solution. AK4497 is used as the DA conversion chip. AK4118 is used as digital audio input receiving chip, and STM32 is used as the control of the whole machine. The large-scale FPGA of Xilinx is used to process clock system and digital audio streams.\u003cbr\u003e- Its headphone amp part adopts 4-way full balance design, and independent class A headphone amplifier drive circuit. Using a pre-analog design, its preamp output will not not affect the digital attenuation of the sound dynamics.\u003cbr\u003e- Rich input \u0026amp; output interfaces, including standard USB2.0 input port, SPDIF coaxial and AES balanced input, analog XLR balanced output, and analog RCA output.\u003cbr\u003e- PCM supports up to 384Khz. Adopting native direct solution technology, DSD supports up to DSD512. All interfaces support DSD decoding.\u003cbr\u003e- DAC AK4497EQ is adopted as its DAC chip. The DSD adopts the native direct solution mode. The DSD digital stream does not pass through the internal digital filter and modulator, and works in the NOS mode. The PCM can also choose to work in the NOS mode, which is in line with the HQPlayer design concept. \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eFour Main Technologies:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e1.USB part uses first generation isolation technology: SCIT technology (Singxer capacitor isolation technique). SCIT technology is a full isolation technology (ground isolation). 150Mbps isolation chip is used for high-speed signal and optocoupler isolation is used for low-speed signal, which can completely isolate interference from PC.\u003cbr\u003e\u003cbr\u003e2.Source synchronization technology and FPGA shaping technology: Reshape isolated I2S signal, thereby eliminating the additive jitter caused by the isolation chip.\u003cbr\u003e\u003cbr\u003e3. Self-developed clock system uses a femtosecond crystal oscillator as the local reference clock.\u003cbr\u003e\u003cbr\u003e4. 4-channel class A discrete amp circuit: full balanced amplification of 8 patch transistors per route.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eSpecifications: \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003e- Model Number: SDA-2A (Standard Version)\u003cbr\u003e- Optional Type: 230V, 115V \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- Housing Size: 262 x 220 x 46mm \u003cbr\u003e- Net Weight: 3kg \u003cbr\u003e- Color: Black \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eSample Rate Supported by Input Interfaces:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- PCM: 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz, 352.8KHz, 384KHz\u003cbr\u003e (USB \u0026amp; I2S support all sampling rates, S\/PDIF supports up to 192KHz)\u003cbr\u003e- DSD: \u003cbr\u003e  2.8 MHz (DSD64) - DoP, native; \u003cbr\u003e  5.6 MHz (DSD128) - DoP, native; \u003cbr\u003e  11.2 MHz (DSD256) - DoP, native\u003cbr\u003e  22.5792 MHz (DSD512) - native.\u003cbr\u003e  (USB \u0026amp; I2S support all DSD formats, S\/PDIF \u0026amp; AES\/EBU support DSD64 DOP format)\u003cbr\u003e- Bit width: Up to 32 bit over I2S output; Up to 24 bit over S\/PDIF\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eElectrical Standards for Interfaces: \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- USB Input Socket: A standard USB-B type female socket. USB power supply range is 4.5V-5.1V;\u003cbr\u003e- SPDIF Interface: It inputs standard S\/PDIF signal, input impedance is 75 ohms, AES input impedance is 110 ohms;\u003cbr\u003e- Power Supply Port: Input AC 115V\/ 230V , O-type transformer 30W is used inside to power; \u003cbr\u003e- I2S Input: LVDS level in the form of HDMI interface, compatible with SU-1 interface.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eAnalog Output Performance:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- Output Level (0dBFS):\u003cbr\u003e   PCM: RCA single-ended output is 2V RMS; XLR balanced output is 4V RMS\u003cbr\u003e   DSD: RCA single-ended output is 1.8V RMS; XLR balanced output is 3.6V RMS\u003cbr\u003e- Output Impedance: 22 ohms (RCA single ended) \/ 44 ohms (XLR balanced)\u003cbr\u003e- Frequency Response: 20-20kHz±0.2dB\u003cbr\u003e- SNR: 125dB\u003cbr\u003e- Distortion Characteristics:\u003cbr\u003e  THD+N (1kHz, 0dBFS) 0.00025% at fs=44.1Khz (PCM)\u003cbr\u003e  THD+N (1kHz, 0dBFS) 0.00030% at DSD256\u003cbr\u003e- Dynamic Response (1kHz, -60dBFS): 125dB\u003cbr\u003e- Left and Right Channel Separation: \u0026gt;125dB\u003cbr\u003e- Balanced Output Noise Level: 2.2uv RMS\u003cbr\u003e\u003cbr\u003eBalanced headphone amplifier outputs max. Power 3480mW@30Ω, 0dBFS\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eLoad Power: \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- 30Ω 3480mW\u003cbr\u003e- 75Ω 1640mW\u003cbr\u003e- 150Ω 920mW\u003cbr\u003e- 300Ω 440mW\u003cbr\u003e- 600Ω 220mW\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eDistortion of Balanced Headphone Amplifier, 0dBFS, fs=44.1Khz (PCM)\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- 75ΩLoad, THD+N: -105dB\u003cbr\u003e- 600ΩLoad, THD+N: -110dB\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eThe following are AP measured data, all are DAC balanced fixed level output mode, filter SHARP, fs=44.1Khz (PCM)\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cb\u003e1.Very clean 1K FFT with only 2-5 harmonics, no high harmonics and other spurs\u003c\/b\u003e\u003cbr\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/201906\/62074\/62074-01.jpg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003e2.Super lower noise level about 2.0uv\u003c\/b\u003e\u003cbr\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/201906\/62074\/62074-02.jpg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003e3.20-20KHz frequency response \u003c\/b\u003e\u003cbr\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/201906\/62074\/62074-03.jpg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003e4.Excellent Distortion Performance: All the frequency band is kept below 0.00033% in THD+N frequency sweep tests \u003cbr\u003e\u003c\/b\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/201906\/62074\/62074-04.jpg\"\u003e\u003cb\u003e\u003cbr\u003e\u003cbr\u003e5.Amazing SNR: Measured SNR at 125.6dB\u003cbr\u003e\u003c\/b\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/201906\/62074\/62074-05.jpg\"\u003e\u003cb\u003e\u003cbr\u003e\u003cbr\u003e6.Fast Dynamic Response: Its DNR stands at 126dB \u003cbr\u003e\u003c\/b\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/201906\/62074\/62074-06.jpg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eSystem Compatibility:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- For Windows 7, Windows 8, Windows 10; 32\/64 bit. A a dedicated driver is needed. \u003cbr\u003e- For native MacOS 10.6 and above, using your system’s own driver. \u003cbr\u003e- For native Linux with UAC2 compliant kernel, using the system's own driver, (tested on Ubuntu and Daphile systems, based on INTEL X86 platform)\u003cbr\u003e- For Android OS 4.2 and above, which needs to support OTG function. Generally speaking, it fits for Android 5.0 system. For Android system below 5.0, a dedicated player is needed. \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eI2S Port Using HDMI Socket to Input:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- LVDS differential signal with a level of 3.3V;\u003cbr\u003e\u003cbr\u003e- The I2S interface is compatible with multiple I2S output signal definitions, and the FPGA has built-in PCM\/DSD signal automatic identification algorithm;\u003cbr\u003e\u003cbr\u003e- The DSD ON signal can also be defined by itself. DSD ON signal can be input to the PIN13, 14, 15, and 16 pins of the socket;\u003cbr\u003e\u003cbr\u003e- The phase of PIN1-3 and PIN7-9 is adjustable, and the user can configure the phases of the these two pairs of outputs through one switch;\u003cbr\u003e\u003cbr\u003e- The SDA-2 can be configured with SW switch to accommodate different I2S standards.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- 1 x DAC Headphone Amplifier \u003cbr\u003e- 1 x USB Cable \u003cbr\u003e- 1 x Power Cable \u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"background-color: inherit;\"\u003e\u003cbr\u003e\u003cb\u003eNote:\u003cbr\u003e- Model Number: SDA-2A (Standard Version)\u003cbr\u003e- Optional Type: 230V, 115V. Please tell us the type you want when purchasing. Thank you!  \u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824535777329,"sku":"62074","price":620.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076790435889_watermarked_0.jpg_0.png?v=1768041551"},{"product_id":"sda-2c-audio-dac-amp-headphone-preamplifier-nos-native-decoding-384khz-dsd512-ak4497-high-end-version","title":"SDA-2C Audio DAC Amp Headphone Preamplifier NOS Native Decoding 384KHz\/DSD512 AK4497 High-End Version","description":"\u003cp\u003e\u003cb\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003eDescription:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003eSDA-2C DAC Headphone Preamplifier is the high-end version. The clock of its USB part is built with Crystek femtosecond crystal oscillator CCHD-575. \u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003e\u003cbr\u003eFeatures:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- It is a high-performance HiFi audio decoder headphone preamplifier. \u003cbr\u003e- XMOS's latest xCORE-200 series chip is adopted as the USB Audio solution. AK4497 is used as the DA conversion chip. AK4118 is used as digital audio input receiving chip, and STM32 is used as the control of the whole machine. The large-scale FPGA of Xilinx is used to process clock system and digital audio streams.\u003cbr\u003e- Its headphone amp part adopts 4-way full balance design, and independent class A headphone amplifier drive circuit. Using a pre-analog design, its preamp output will not not affect the digital attenuation of the sound dynamics.\u003cbr\u003e- Rich input \u0026amp; output interfaces, including standard USB2.0 input port, SPDIF coaxial and AES balanced input, analog XLR balanced output, and analog RCA output.\u003cbr\u003e- PCM supports up to 384Khz. Adopting native direct solution technology, DSD supports up to DSD512. All interfaces support DSD decoding.\u003cbr\u003e- DAC AK4497EQ is adopted as its DAC chip. The DSD adopts the native direct solution mode. The DSD digital stream does not pass through the internal digital filter and modulator, and works in the NOS mode. The PCM can also choose to work in the NOS mode, which is in line with the HQPlayer design concept. \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eFour Main Technologies:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e1.USB part uses first generation isolation technology: SCIT technology (Singxer capacitor isolation technique). SCIT technology is a full isolation technology (ground isolation). 150Mbps isolation chip is used for high-speed signal and optocoupler isolation is used for low-speed signal, which can completely isolate interference from PC. The high-end version of the USB portion can basically reach the level of the SU-1 independent digital interface.\u003cbr\u003e\u003cbr\u003e2.Source synchronization technology and FPGA shaping technology: Reshape isolated I2S signal, thereby eliminating the additive jitter caused by the isolation chip.\u003cbr\u003e\u003cbr\u003e3. Self-developed clock system uses a femtosecond crystal oscillator as the local reference clock.\u003cbr\u003e\u003cbr\u003e4. 4-channel class A discrete amp circuit: full balanced amplification of 8 patch transistors per route.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eSpecifications: \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003e- Model Number: SDA-2C (High-End Version)\u003cbr\u003e- Optional Type: 230V, 115V \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- Housing Size: 262 x 220 x 46mm \u003cbr\u003e- Net Weight: 3kg \u003cbr\u003e- Color: Black \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eSample Rate Supported by Input Interfaces:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- PCM: 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz, 352.8KHz, 384KHz\u003cbr\u003e (USB \u0026amp; I2S support all sampling rates, S\/PDIF supports up to 192KHz)\u003cbr\u003e- DSD: \u003cbr\u003e  2.8 MHz (DSD64) - DoP, native; \u003cbr\u003e  5.6 MHz (DSD128) - DoP, native; \u003cbr\u003e  11.2 MHz (DSD256) - DoP, native\u003cbr\u003e  22.5792 MHz (DSD512) - native.\u003cbr\u003e  (USB \u0026amp; I2S support all DSD formats, S\/PDIF \u0026amp; AES\/EBU support DSD64 DOP format)\u003cbr\u003e- Bit width: Up to 32 bit over I2S output; Up to 24 bit over S\/PDIF\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eElectrical Standards for Interfaces: \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- USB Input Socket: A standard USB-B type female socket. USB power supply range is 4.5V-5.1V;\u003cbr\u003e- SPDIF Interface: It inputs standard S\/PDIF signal, input impedance is 75 ohms, AES input impedance is 110 ohms;\u003cbr\u003e- Power Supply Port: Input AC 115V\/ 230V , O-type transformer 30W is used inside to power; \u003cbr\u003e- I2S Input: LVDS level in the form of HDMI interface, compatible with SU-1 interface.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eAnalog Output Performance:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- Output Level (0dBFS):\u003cbr\u003e   PCM: RCA single-ended output is 2V RMS; XLR balanced output is 4V RMS\u003cbr\u003e   DSD: RCA single-ended output is 1.8V RMS; XLR balanced output is 3.6V RMS\u003cbr\u003e- Output Impedance: 22 ohms (RCA single ended) \/ 44 ohms (XLR balanced)\u003cbr\u003e- Frequency Response: 20-20kHz±0.2dB\u003cbr\u003e- SNR: 125dB\u003cbr\u003e- Distortion Characteristics:\u003cbr\u003e  THD+N (1kHz, 0dBFS) 0.00025% at fs=44.1Khz (PCM)\u003cbr\u003e  THD+N (1kHz, 0dBFS) 0.00030% at DSD256\u003cbr\u003e- Dynamic Response (1kHz, -60dBFS): 125dB\u003cbr\u003e- Left and Right Channel Separation: \u0026gt;125dB\u003cbr\u003e- Balanced Output Noise Level: 2.2uv RMS\u003cbr\u003e\u003cbr\u003eBalanced headphone amplifier outputs max. Power 3480mW@30Ω, 0dBFS\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eLoad Power: \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- 30Ω 3480mW\u003cbr\u003e- 75Ω 1640mW\u003cbr\u003e- 150Ω 920mW\u003cbr\u003e- 300Ω 440mW\u003cbr\u003e- 600Ω 220mW\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eDistortion of Balanced Headphone Amplifier, 0dBFS, fs=44.1Khz (PCM)\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- 75ΩLoad, THD+N: -105dB\u003cbr\u003e- 600ΩLoad, THD+N: -110dB\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003e\u003cbr\u003eThe following are AP measured data, all are DAC balanced fixed level output mode, filter SHARP, fs=44.1Khz (PCM)\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cb\u003e1.Very clean 1K FFT with only 2-5 harmonics, no high harmonics and other spurs\u003cbr\u003e\u003c\/b\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/201906\/62074\/62074-01.jpg\"\u003e\u003cb\u003e\u003cbr\u003e\u003cbr\u003e2.Super lower noise level about 2.0uv\u003cbr\u003e\u003c\/b\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/201906\/62074\/62074-02.jpg\"\u003e\u003cb\u003e\u003cbr\u003e\u003cbr\u003e3.20-20KHz frequency response \u003cbr\u003e\u003c\/b\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/201906\/62074\/62074-03.jpg\"\u003e\u003cb\u003e\u003cbr\u003e\u003cbr\u003e4.Excellent Distortion Performance: All the frequency band is kept below 0.00033% in THD+N frequency sweep tests \u003cbr\u003e\u003c\/b\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/201906\/62074\/62074-04.jpg\"\u003e\u003cb\u003e\u003cbr\u003e\u003cbr\u003e5.Amazing SNR: Measured SNR at 125.6dB\u003cbr\u003e\u003c\/b\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/201906\/62074\/62074-05.jpg\"\u003e\u003cb\u003e\u003cbr\u003e\u003cbr\u003e6.Fast Dynamic Response: Its DNR stands at 126dB \u003cbr\u003e\u003c\/b\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/201906\/62074\/62074-06.jpg\"\u003e\u003cb\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003eSystem Compatibility:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e- For Windows 7, Windows 8, Windows 10; 32\/64 bit. A a dedicated driver is needed. \u003cbr\u003e- For native MacOS 10.6 and above, using your system’s own driver. \u003cbr\u003e- For native Linux with UAC2 compliant kernel, using the system's own driver, (tested on Ubuntu and Daphile systems, based on INTEL X86 platform)\u003cbr\u003e- For Android OS 4.2 and above, which needs to support OTG function. Generally speaking, it fits for Android 5.0 system. For Android system below 5.0, a dedicated player is needed. \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eI2S Port Using HDMI Socket to Input:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- LVDS differential signal with a level of 3.3V;\u003cbr\u003e\u003cbr\u003e- The I2S interface is compatible with multiple I2S output signal definitions, and the FPGA has built-in PCM\/DSD signal automatic identification algorithm;\u003cbr\u003e\u003cbr\u003e- The DSD ON signal can also be defined by itself. DSD ON signal can be input to the PIN13, 14, 15, and 16 pins of the socket;\u003cbr\u003e\u003cbr\u003e- The phase of PIN1-3 and PIN7-9 is adjustable, and the user can configure the phases of the these two pairs of outputs through one switch;\u003cbr\u003e\u003cbr\u003e- The SDA-2 can be configured with SW switch to accommodate different I2S standards.\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003e\u003cbr\u003ePackage Included:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- 1 x DAC Headphone Amplifier \u003cbr\u003e- 1 x USB Cable \u003cbr\u003e- 1 x Power Cable \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote:\u003cbr\u003e- Model Number: SDA-2C (High-End Version)\u003cbr\u003e- Optional Type: 230V, 115V. Please tell us the type you want when purchasing. Thank you!  \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824535810097,"sku":"62075","price":656.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076790468657_watermarked_0.jpg_0.png?v=1768041537"},{"product_id":"tda7377-dc12v-class-ab-amp-board-car-amplifier-board-35w-35w-dual-channel-diy-audio-amp-kit","title":"TDA7377 DC12V Class AB Amp Board Car Amplifier Board 35W+35W Dual Channel DIY Audio Amp Kit","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- Supply Voltage: DC9-18V (DC 12V recommended)\u003cbr\u003e- Output Power: For 4-8Ω speaker, maximum 2*35W stereo output (18V 4Ω)\u003cbr\u003e- Input Ways: 3.5mm audio input \/ 3P audio input\u003cbr\u003e- Protection: Power input reverse protection, short-circuit, over-current, over-temperature protections \u003cbr\u003e- PCB Size: 58.67 x 55.12 mm\u003cbr\u003e- Opening for Potentiometer Knob: 7mm\u003cbr\u003e- Overall Size: 90.56 x 55.12 x 26.65 mm (L*W*H) (Including heat sink)\u003cbr\u003e- N.W.: 112g \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePremium Components:\u003c\/b\u003e\u003cbr\u003e- Black gold-plated circuit board\u003cbr\u003e- Imported KEMET audio capacitors\u003cbr\u003e- Double imported NICHICON large-capacity filter capacitors per channel\u003cbr\u003e- Quality filter capacitors and metal film resistors\u003cbr\u003e- Black copper terminal, gold-plated audio input terminal, customized 3P pure black terminal\u003cbr\u003e\u003cb\u003e\u003cbr\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x TDA7377 Amplifier Board \u003cbr\u003e- 1 x 3P Audio Input Shielded Cable \u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003e\u003cbr\u003eNote: Nuts, washers and housing are not included. If needed, please contact us. Thank you! \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201907\/62096\/62096-01.jpg\" style=\"width: 750px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201907\/62096\/62096-02.jpg\" style=\"width: 750px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201907\/62096\/62096-03.jpg\" style=\"width: 631px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201907\/62096\/62096-04.jpg\" style=\"width: 750px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201907\/62096\/62096-05.jpg\" style=\"width: 750px;\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824537317425,"sku":"62096","price":11.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076791189553_watermarked_0.jpg_0.png?v=1768041154"},{"product_id":"dc-12v-tda7377-audio-power-amplifier-board-40w-40w-car-amp-board-2-0-channel","title":"DC 12V TDA7377 Audio Power Amplifier Board 40W+40W Car Amp Board 2.0 Channel","description":"\u003cp\u003e\u003cb\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003eFeatures:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e- Adopts TDA7377 integrated chip, stereo dual-channel output 40W*2.\u003cbr\u003e- The power amplifier board installs heat sink for fast heat dissipation to ensure stable operation\u003cbr\u003e- One piece of 16V 3300UF filter capacitor\u003cbr\u003e- With treble adjustment, bass adjustment and volume adjustment potentiometer and indicator\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003e\u003cbr\u003eSpecifications:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- Amplifier Chip: TDA7377\u003cbr\u003e- Output Power: 40W+40W\u003cbr\u003e- Channel Type: 2.0 Channel\u003cbr\u003e- Operating Voltage: AC DC 9-15V\/20-40W (Recommended DC 12V 2A Above)\u003cbr\u003e- Frequency Response: 20Hz-20KHz\u003cbr\u003e- Size: 11 x 10 x 3.5cm \u003cbr\u003e- Weight: 100g\u003cbr\u003e- Suitable for 3-6 inch bookshelf speakers and floor speakers \u003cbr\u003e- Material: Aluminum Heat Sink + Amplifier Board \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- 1 x Amplifier Board\u003cbr\u003e\u003cbr\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62097\/62097-01.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62097\/62097-02.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62097\/62097-03.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62097\/62097-04.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62097\/62097-05.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62097\/62097-06.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62097\/62097-07.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62097\/62097-08.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824537350193,"sku":"62097","price":10.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076791222321_watermarked_0.jpg_0.png?v=1768041131"},{"product_id":"pam8406-class-d-audio-amplifier-board-5w-5w-dc5v-amplifier-module-2-channel-for-diy-speakers","title":"PAM8406 Class D Audio Amplifier Board 5W+5W DC5V Amplifier Module 2-Channel for DIY Speakers","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- Supply Voltage: DC 5V (Please not over-voltage, or IC will be burned)\u003cbr\u003e- Input Method: Single-ended\u003cbr\u003e- Output Power: 5W 2Ω 5V \/ 3W 4Ω 5V \/ 1.8W 8Ω 5V\u003cbr\u003e- Size: 55.12 x 32.26 mm\u003cbr\u003e- Product Weight: 25g\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePremium Components:\u003c\/b\u003e\u003cbr\u003e- High-grade pure black golden circuit board\u003cbr\u003e- Imported KEMET audio capacitor\u003cbr\u003e- Large-capacity filter capacitor for each channel\u003cbr\u003e- Special black pure copper terminals\u003cbr\u003e- Gold-plated audio input terminals\u003cbr\u003e\u003cbr\u003e\u003cb\u003eExcellent Performance:\u003c\/b\u003e\u003cbr\u003e- Efficiency: \u0026gt;90%\u003cbr\u003e- Total Harmonic Distortion plus Noise: \u0026lt;10%\u003cbr\u003e- Low quiescent current\u003cbr\u003e- Noise suppression\u003cbr\u003e- Protection: Reverse protection for power supply, short-circuit, over-temperature, EMI protections \u003cbr\u003e\u003cbr\u003e\u003cb\u003eAdditional Functions:\u003c\/b\u003e\u003cbr\u003e- External power amplifier type selection function (MODE: high level D, low level AB, factory default high level)\u003cbr\u003e- External Shutdown (SD: Chip Shutdown at Low Level, Factory Default High Level)\u003cbr\u003e- Can be muted externally (MUTE: low-level mute, factory default high-level)\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x PAM8406 Digital Power Amplifier\u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201907\/62099\/62099-01.jpg\" style=\"width: 750px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201907\/62099\/62099-02.jpg\" style=\"width: 750px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201907\/62099\/62099-03.jpg\" style=\"width: 750px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201907\/62099\/62099-04.jpg\" style=\"width: 750px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201907\/62099\/62099-05.jpg\" style=\"width: 750px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201907\/62099\/62099-06.jpg\" style=\"width: 750px;\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824537415729,"sku":"62099","price":6.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076791287857_watermarked_0.jpg_0.png?v=1768041093"},{"product_id":"tpa3116-mini-power-amplifier-bluetooth-5-0-bass-treble-high-power-amp-50w-2-amplifier-antenna","title":"TPA3116 Mini Power Amplifier Bluetooth 5.0 Bass Treble High Power Amp 50W*2 (Amplifier + Antenna)","description":"\u003cp\u003e\u003cb\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003eFeatures:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e- Fine Texture: Sandblasting for delicate feeling \u003cbr\u003e- Soft Start Power Switch: protects speakers from impact and anti-interference when it is on\/off \u003cbr\u003e- High-frequency Ring-resistance Constant-voltage Power Management System: Insert DC power supply without arc spark, which is safe and reliable to use \u003cbr\u003e- Against Surge: Protects speakers from being damaged when the power is cut off.\u003cbr\u003e- Compatibility: Compatible with 99% mobile phones, table PC, desktop computers on the market. Effective range is up to 10m.\u003cbr\u003e- QCC3003 Bluetooth 5.0 Chip: Ensures quality communications, excellent compatibility and amazing performance. Provides 3D stereo sound, supporting HFP, I2S and SBCAPPLE-ACC.\u003cbr\u003e- Special inductance dedicated to digital power amplifier circuits. The sound is cleaner, more delicate, and the dynamic display is clearer. The ring closure package has better anti-interference effect. It is the best match for high-end digital circuits.\u003cbr\u003e- TPA3116 Digital Amp IC: High power, less heat, low distortion, good dynamics, strong sense of the scene.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- Model Number: 3116 MINI POWER AMPLIFIER \u003cbr\u003e- Output Power: 50W*2 \u003cbr\u003e- Input: Bluetooth 5.0+ AUX \u003cbr\u003e- Power Supply: DC 12-24V (Outer Dia.5.5mm Port; Inner Dia.2.5mm Port) \u003cbr\u003e- Impedance: 4-8Ω\u003cbr\u003e- Size: 87 x 102 x 32 mm \u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003e- Optional Colors: Silver, Black \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003ePackage Included: \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- 1 x Mini Power Amplifier \u003cbr\u003e- 1 x Antenna \u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cbr\u003e\u003cb\u003eNote: \u003cbr\u003e- Optional Colors: Silver, Black. Please tell us the color you want when purchasing. Thank you!  \u003cbr\u003e- Power adapter and power cable are not included in this package. \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824537645105,"sku":"62106","price":37.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076791517233_watermarked_0.jpg_0.png?v=1768040946"},{"product_id":"tpa3116-mini-power-amplifier-bluetooth-5-0-50w-2-amplifier-antenna-power-adapter-aux-cable","title":"TPA3116 Mini Power Amplifier Bluetooth 5.0 50W*2 (Amplifier + Antenna+Power Adapter+ AUX Cable)","description":"\u003cp\u003e\u003cb\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003eFeatures:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e- Fine Texture: Sandblasting for delicate feeling \u003cbr\u003e- Soft Start Power Switch: protects speakers from impact and anti-interference when it is on\/off \u003cbr\u003e- High-frequency Ring-resistance Constant-voltage Power Management System: Insert DC power supply without arc spark, which is safe and reliable to use \u003cbr\u003e- Against Surge: Protects speakers from being damaged when the power is cut off.\u003cbr\u003e- Compatibility: Compatible with 99% mobile phones, table PC, desktop computers on the market. Effective range is up to 10m.\u003cbr\u003e- QCC3003 Bluetooth 5.0 Chip: Ensures quality communications, excellent compatibility and amazing performance. Provides 3D stereo sound, supporting HFP, I2S and SBCAPPLE-ACC.\u003cbr\u003e- Special inductance dedicated to digital power amplifier circuits. The sound is cleaner, more delicate, and the dynamic display is clearer. The ring closure package has better anti-interference effect. It is the best match for high-end digital circuits.\u003cbr\u003e- TPA3116 Digital Amp IC: High power, less heat, low distortion, good dynamics, strong sense of the scene.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- Model Number: 3116 MINI POWER AMPLIFIER \u003cbr\u003e- Output Power: 50W*2 \u003cbr\u003e- Input: Bluetooth 5.0+ AUX \u003cbr\u003e- Power Supply: DC 12-24V (Outer Dia.5.5mm Port; Inner Dia.2.5mm Port) \u003cbr\u003e- Impedance: 4-8Ω\u003cbr\u003e- Size: 87 x 102 x 32 mm \u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003e- Optional Colors: Silver, Black \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003ePackage Included: \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- 1 x Mini Power Amplifier \u003cbr\u003e- 1 x Antenna \u003cbr\u003e- 1 x Power Adapter \u003cbr\u003e- 1 x AUX Cable \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote: Optional Colors: Silver, Black. Please tell us the color you want when purchasing. Thank you!  \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824537677873,"sku":"62107","price":46.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076791550001_watermarked_0.jpg_0.png?v=1768040917"},{"product_id":"pa-01-3-in-1-power-amplifier-dac-headphone-amplifier-200w-bluetooth-5-0-amp-antenna","title":"PA-01 3-In-1 Power Amplifier DAC Headphone Amplifier 200W Bluetooth 5.0 (Amp + Antenna)","description":"\u003cp\u003e\u003cb\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003eFeatures:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e- Multipurpose: Power amplifier, decoder and headphone amplifier in one. \u003cbr\u003e- Soft Start Power Switch: protects speakers from impact and anti-interference when it is on\/off. \u003cbr\u003e- High-frequency Ring-resistance Constant-voltage Power Management System: Insert DC power supply without arc spark, which is safe and reliable to use. \u003cbr\u003e- Against Surge: Protects speakers from being damaged when the power is cut off.\u003cbr\u003e- ES9018K2M HiFi DAC Chip: Supports 192KHz\/32bit sampling, SNR is up to 127dB, THD is lower than -120dB. It creates HiFi sound for users. \u003cbr\u003e- BTM308-C Bluetooth Module: Built with QCC3008 chip, it supports A2DP, AVRCP, HFP, TWS, AAC, I2S, APTX, APTX-LL. 16M SPI Flash memory chiip is used. \u003cbr\u003e- Bluetooth 5.0 Chip: Ensures quality communications, excellent compatibility and amazing performance.\u003cbr\u003e- Compatibility: Compatible with 99% mobile phones, table PC, desktop computers on the market. Effective range is up to 10m.\u003cbr\u003e- Special inductance dedicated to digital power amplifier circuits. The sound is cleaner, more delicate, and the dynamic display is clearer. The ring closure package has better anti-interference effect. It is the best match for high-end digital circuits.\u003cbr\u003e- 2pcs Amplifier IC: One piece is for one channel. Its total output power is up to 200W. It can drive 6-inch and 8-inch speaker units. \u003cbr\u003e- 3pcs Independent op amp are used to adjust bass and treble. Original relay is used for lossless switching of audio input signals. \u003cbr\u003e- Professional HiFi Headphone Amp Chip: Synchronous parallel output of amplifier and headphone amp ensures accurate monitoring. \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- Model Number: PA-01 \u003cbr\u003e- Output Power: 100W*2\u003cbr\u003e- Headphone Power: 700mW*2@32Ω, 156mW*2@300Ω\u003cbr\u003e- Input: Bluetooth 5.0 APTX, RCA \u003cbr\u003e- Power Supply: DC 12-24V (Outer Dia.5.5mm Port; Inner Dia.2.5mm Port) \u003cbr\u003e- Impedance: 4-8Ω\u003cbr\u003e- Size: 133 x 36 x 149 mm \u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003e- Optional Colors: Silver, Black \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003e\u003cbr\u003ePackage Included: \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- 1 x DAC Amplifier \u003cbr\u003e- 1 x Antenna \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote: \u003cbr\u003e- Optional Colors: \u003c\/b\u003e\u003c\/span\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eSilver, Black\u003c\/b\u003e\u003c\/span\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003e. Please tell us the color you want when purchasing. Thank you! \u003cbr\u003e- Power cable is not included in this package. \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824537710641,"sku":"62108","price":54.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076791582769_watermarked_0.jpg_0.png?v=1768040899"},{"product_id":"pa-01-3-in-1-power-amplifier-dac-headphone-amp-200w-bt-5-0-amp-antenna-power-adapter-cable","title":"PA-01 3-In-1 Power Amplifier DAC Headphone Amp 200W BT 5.0 (Amp + Antenna + Power Adapter Cable)","description":"\u003cp\u003e\u003cb\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003eFeatures:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e- Multipurpose: Power amplifier, decoder and headphone amplifier in one. \u003cbr\u003e- Soft Start Power Switch: protects speakers from impact and anti-interference when it is on\/off. \u003cbr\u003e- High-frequency Ring-resistance Constant-voltage Power Management System: Insert DC power supply without arc spark, which is safe and reliable to use. \u003cbr\u003e- Against Surge: Protects speakers from being damaged when the power is cut off.\u003cbr\u003e- ES9018K2M HiFi DAC Chip: Supports 192KHz\/32bit sampling, SNR is up to 127dB, THD is lower than -120dB. It creates HiFi sound for users. \u003cbr\u003e- BTM308-C Bluetooth Module: Built with QCC3008 chip, it supports A2DP, AVRCP, HFP, TWS, AAC, I2S, APTX, APTX-LL. 16M SPI Flash memory chiip is used. \u003cbr\u003e- Bluetooth 5.0 Chip: Ensures quality communications, excellent compatibility and amazing performance.\u003cbr\u003e- Compatibility: Compatible with 99% mobile phones, table PC, desktop computers on the market. Effective range is up to 10m.\u003cbr\u003e- Special inductance dedicated to digital power amplifier circuits. The sound is cleaner, more delicate, and the dynamic display is clearer. The ring closure package has better anti-interference effect. It is the best match for high-end digital circuits.\u003cbr\u003e- 2pcs Amplifier IC: One piece is for one channel. Its total output power is up to 200W. It can drive 6-inch and 8-inch speaker units. \u003cbr\u003e- 3pcs Independent op amp are used to adjust bass and treble. Original relay is used for lossless switching of audio input signals. \u003cbr\u003e- Professional HiFi Headphone Amp Chip: Synchronous parallel output of amplifier and headphone amp ensures accurate monitoring. \u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003e\u003cbr\u003eSpecifications:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- Model Number: PA-01 \u003cbr\u003e- Output Power: 100W*2\u003cbr\u003e- Headphone Power: 700mW*2@32Ω, 156mW*2@300Ω\u003cbr\u003e- Input: Bluetooth 5.0 APTX, RCA \u003cbr\u003e- Power Supply: DC 12-24V (Outer Dia.5.5mm Port; Inner Dia.2.5mm Port) \u003cbr\u003e- Impedance: 4-8Ω\u003cbr\u003e- Size: 133 x 36 x 149 mm \u003cbr\u003e\u003cspan style=\"background-color: inherit;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003e- Optional Colors: Silver, Black \u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003e\u003cbr\u003ePackage Included:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- 1 x DAC Amplifier \u003cbr\u003e- 1 x Antenna \u003cbr\u003e- 1 x Power Cable \u003cbr\u003e- 1 x Power Adapter \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote: Optional Colors: Silver, Black. Please tell us the color you want when purchasing. Thank you! \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824537743409,"sku":"62109","price":66.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076791615537_watermarked_0.jpg_0.png?v=1768040887"},{"product_id":"xh-m314-bluetooth-amplifier-board-2-45w-stereo-audio-digital-amp-board-dual-channels-tpa3118-chip","title":"XH-M314 Bluetooth Amplifier Board 2*45W Stereo Audio Digital Amp Board Dual Channels TPA3118 Chip","description":"\u003cp\u003e\u003cb\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003eDescription:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e- Original TPA3118 Chip: Provides all-around protections, including short-circuit, over-temperature, over-voltage, under-voltage protections \u003cbr\u003e- Support Bluetooth and wired AUX input. \u003cbr\u003e- 20M effective range for Bluetooth connection in open space without obstacles. \u003cbr\u003e- Bluetooth Connection: 1. Open Bluetooth in your smartphone and search XH-Electronics to connect. 2. Play and enjoy music.\u003cbr\u003e- Wide Input Voltage Range: DC 12 to 28V.\u003cbr\u003e- Two-Channel: Its power stands at 2*45W for high quality music.  \u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003eSpecifications:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e- Model Number: XH-M314\u003cbr\u003e- Item Name: Digital Bluetooth Amp Board \u003cbr\u003e- Chip Type: TPA3118\u003cbr\u003e- Power Supply: DC 12-28V\u003cbr\u003e- Input Current: \u0026gt;3A\u003cbr\u003e- Output Power: 2*45W\u003cbr\u003e- Channels: 2 (2.0)\u003cbr\u003e- impedance:4-8Ω\u003cbr\u003e- Size: 71 x 52 x 13mm\u003cbr\u003e- Weight: 33g \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- 1 x Bluetooth Amplifier Board \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote: When audio input terminals are connected to Bluetooth and AUX cables, Bluetooth input is of priority. \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg style=\"width: 748px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62121\/62121-01.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 748px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62121\/62121-02.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 733px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62121\/62121-03.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824538169393,"sku":"62121","price":8.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076792041521_watermarked_0.jpg_0.png?v=1768040675"},{"product_id":"tpa3116-2-50w-bluetooth-receiver-amplifier-board-remote-control-tf-card-u-disk-player","title":"TPA3116 2*50W Bluetooth Receiver Amplifier Board+Remote Control TF Card U Disk Player","description":"\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Model Number: SW-HF71\u003cbr\u003e- Audio source: 1. U Disk; 2. TF Card Decoding Player (Support FLAC, WAV, MP3, WMA Decoding Format); 3. Bluetooth\u003cbr\u003e- Power Supply: DC 8-26V\u003cbr\u003e- Amplifier Chip: TPA3116 Stereo;\u003cbr\u003e- Power 2*50W, with Heat Sink (Recommended power supply\u0026gt;24V 3A)\u003cbr\u003e- With IR remote control \u003cbr\u003e\u003cb\u003e\u003cbr\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Bluetooth Receiver Amplifier Board \u003cbr\u003e- 1 x IR Remote Control\u003cbr\u003e\u003cbr\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62122\/62122-01.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62122\/62122-02.jpg\"\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824538202161,"sku":"62122","price":12.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076792074289_watermarked_0.jpg_0.png?v=1768040659"},{"product_id":"tpa3116d2-class-d-amp-board-2-120w-high-power-amplifier-board-dual-channel-xh-m543","title":"TPA3116D2 Class D Amp Board 2*120W High Power Amplifier Board Dual-Channel XH-M543","description":"\u003cp\u003e\u003cb\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003eDescription:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003eThis high power amp board features onboard IC, improving its input sensitivity and providing high-definition sound quality.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- TPA3116D2 chip ensures high efficiency over 90% \u003cbr\u003e- All-around Protection: Short-circuit, over-temperature, over-voltage, under-voltage protections \u003cbr\u003e- Wide Voltage Range: DC 12 to 26V \u003cbr\u003e- Excellent heat dissipation \u003cbr\u003e- SMD Inductors: It filters noises and signals and make current more stable, against the interference from electromagnetic waves\u003cbr\u003e- Military-grade PCB board 1.6mm in thickness \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- Model: XH-M543\u003cbr\u003e- Item Name: TPA3116D2 Digital Amp Board \u003cbr\u003e- Chip Type: TPA3116D2\u003cbr\u003e- Power Supply: DC12-26V\u003cbr\u003e- Output Power: 2*120W@DC24V, 2*50W@ DC12V\u003cbr\u003e- SNR: 100dB \u003cbr\u003e- Channels: Dual-Channel Stereo \u003cbr\u003e- Size: 92 x 68 x 16mm \u003cbr\u003e- Weight: 76g \u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003ePackage Included\u003c\/span\u003e:\u003c\/b\u003e\u003cbr\u003e- 1 x Audio Amplifier Board \u003cbr\u003e- 1 x Audio Cable \u003cbr\u003e\u003cbr\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62137\/62137-01.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62137\/62137-02.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824538726449,"sku":"62137","price":11.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076792598577_watermarked_0.jpg_0.png?v=1768040386"},{"product_id":"jc-tu98e-80w-80w-bluetooth-tube-preamplifier-bluetooth-dac-amp-bluetooth-5-0-black-6j1-version","title":"JC-TU98E 80W+80W Bluetooth Tube Preamplifier Bluetooth DAC Amp Bluetooth 5.0 Black 6J1 Version","description":"\u003cp\u003e\u003cb\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003eFeatures:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e- TDA7498 chip for power output. Minimum load impedance 4Ω per channel. Maximum load stands at 160W 4Ω@400W power supply. \u003cbr\u003e- Compatible with 32V 5A power supply, enabling load up to 80W 4Ω per channel. For larger power output, you can replace it with power supply 32-36V larger than DC 10A.  \u003cbr\u003e- 2-Channel Switchable Audio Inputs: It supports one-channel RCA analog audio input and one-channel wireless Bluetooth input. The Bluetooth audio input is in priority. Lossless audio switching is finished via relay. \u003cbr\u003e- CD-Level Music Quality: Bluetooth 5.0 QC3003 Bluetooth program + PCM5102A decoder chip are used for amazing sound quality. \u003cbr\u003e- Preamplifier Circuit: It is designed with bass and treble knobs. Dual tubes soften its sound. \u003cbr\u003e\u003cbr\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62176\/62176-01.jpg\"\u003e\u003cbr\u003e① Power Switch: Pull up to turn it on. Pull down to turn it off. LED indicator is on when it is powered on.  \u003cbr\u003e② Low Frequency Adjustment: When the knob tick marks the 12 o'clock position, it is 0DB. Rotate to the left for low frequency attenuation and to the right for low frequency increase.\u003cbr\u003e③ High Frequency Adjustment: When the knob tick marks the 12 o'clock position, it is 0DB. Rotate to the left for low frequency attenuation and to the right for low frequency increase.\u003cbr\u003e④ Volume Knob: Rotate to the left for volume - and to the right for volume +.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eAttention: In case of damage to your speakers caused by exceeding volume when it is powered on, please turn the volume down the the minimum volume before using. \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62176\/62176-02.jpg\"\u003e\u003cbr\u003e⑤ Bluetooth Antenna Port: Bluetooth antenna is used to make receiving signal more stable. \u003cbr\u003e⑥ Bluetooth Indicator: Red and Blue lights flash in intervals, which means it is searching and waiting to match. Blue light is on steadily, which means that is is connected. \u003cbr\u003e⑦ RCA Analog Audio Signal Input: R for right-channel input and L for left-channel input.  \u003cbr\u003e⑧ Right-Channel Output for Amplifier: Red one for + and Black one for - . Minimum impedance is 4Ω. Please use it with speakers ≥4Ω. \u003cbr\u003e⑨ Left-Channel Output for Amplifier: Red one for + and Black one for - . Minimum impedance is 4Ω. Please use it with speakers ≥4Ω. \u003cbr\u003e⑩ Power Supply Input Port: Please use DC power supply 24V-36V. DC 32V and DC36V are recommended. \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- 1 x Bluetooth Tube Preamplifier \u003cbr\u003e\u003cbr\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62176\/62176-03.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201907\/62176\/62176-04.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824544329777,"sku":"62176","price":106.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076794826801_watermarked_0.jpg_0.png?v=1768039710"},{"product_id":"xh-m139-2-1-amplifier-board-2-80w-100w-digital-power-amplifier-board-tpa3116d2-4-8ω","title":"XH-M139 2.1 Amplifier Board 2*80W+100W Digital Power Amplifier Board TPA3116D2 4-8Ω","description":"\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Item Name: 2.1 Channel Audio Amplifier Board \u003cbr\u003e- Voltage: DC12-24V \u003cbr\u003e- Output Power: 80W*2(MAX)+100W*1 (Subwoofer)\u003cbr\u003e- Output Impedance: 4-8Ω\u003cbr\u003e- Frequency Range: 14-100KHz \u003cbr\u003e- SNR: 100dB \u003cbr\u003e- Size:100 x 70 x 30mm \u003cbr\u003e- Weight: 136g \u003cbr\u003e\u003cb\u003e\u003cbr\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Digital Amplifier Board \u003cbr\u003e- 4 x Screws \u003cbr\u003e- 4 x Nuts \u003cbr\u003e\u003cbr\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/201908\/62612\/62612-01.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824563793969,"sku":"62612","price":16.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076810784817_watermarked_0.jpg_0.png?v=1768033098"},{"product_id":"50w-shortwave-amplifier-rf-power-amplifier-hf-rf-amplifier-hf-linear-amp-2-54mhz-for-ham-radio","title":"50W Shortwave Amplifier RF Power Amplifier HF RF Amplifier HF Linear Amp 2-54MHz for Ham Radio","description":"\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Operating Frequency: 2-54MHz \u003cbr\u003e- Working Voltage: DC 12-16V@9A\u003cbr\u003e- Input Power: 3-5W\u003cbr\u003e- Fan Cooling \u003cbr\u003e- Input \u0026amp; Output Impedance: SMA@50Ω\u003cbr\u003e- Size: 100 x 70 x 68mm \u003cbr\u003e\u003cb\u003e\u003cbr\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x 50W RF Power Amplifier \u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824577622065,"sku":"62764","price":63.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076817731633_watermarked_0.jpg_0.png?v=1768031063"},{"product_id":"100w-shortwave-amplifier-rf-power-amplifier-hf-rf-amplifier-hf-linear-amp-2-54mhz-for-ham-radio","title":"100W Shortwave Amplifier RF Power Amplifier HF RF Amplifier HF Linear Amp 2-54MHz for Ham Radio","description":"\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Operating Frequency: 2-54MHz \u003cbr\u003e- Working Voltage: DC 12-16V@9A\u003cbr\u003e- Input Power: 3-5W\u003cbr\u003e- Fan Cooling \u003cbr\u003e- Input \u0026amp; Output Impedance: SMA@50Ω\u003cbr\u003e- Size: 100 x 70 x 68mm \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x 100W RF Power Amplifier \u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824577654833,"sku":"62765","price":71.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076817764401_watermarked_0.jpg_0.png?v=1768031049"},{"product_id":"a10-digital-power-amplifier-bluetooth-5-0-100w-2-independent-decoding-usb-interface-tpa3116","title":"A10 Digital Power Amplifier Bluetooth 5.0 100W*2 Independent Decoding USB Interface TPA3116","description":"\u003cp\u003e\u003cb\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003eFeatures:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e- HiFi high-end amplifiers for music enthusiast \u003cbr\u003e- Aluminum alloy shell and knobs with excellent touch feeling \u003cbr\u003e- Well welded PCB board and strict tests ensure quality guarantee and mechanical life span \u003cbr\u003e- Improved circuit board and full, delicate sound quality with high resolution \u003cbr\u003e- Support RCA analog signal input, cellphone Bluetooth input, USB lossless decoding for PC\u003cbr\u003e- Sound quality of imported MKS coupling capacitors outperform that of WIMA \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- Output Power: 100W+100W (DC25V @4Ω)\u003cbr\u003e- Load Range: 4-8Ω\u003cbr\u003e- Output Frequency: 10Hz-30KHz \u003cbr\u003e- Size: 103 x 111mm \u003cbr\u003e- Input Ports: Bluetooth, USB and RCA \u003cbr\u003e- DC Port Standard: 5.5-2.1\u003cbr\u003e- Amplifier Chips: 2pcs TPA3116D2\u003cbr\u003e- Bluetooth Chip: QCC3003\u003cbr\u003e- USB Chip: TI PCM2706\u003cbr\u003e- Decoding Chip: TI PCM5102A\u003cbr\u003e- Operational Amplifiers: 2pcs NE5532 \u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003e\u003cbr\u003ePackage Included:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- 1 x Power Amplifier \u003cbr\u003e- 1 x USB Cable \u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cbr\u003e\u003cb\u003eNote: Optional Colors: Silver, Black. Please choose the color you want when purchasing. Thank you! \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003e\u003cbr\u003eAttention:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- Please connect the amplifier to DC power supply plug first. And then make it powered by external power supply 220V. In this way, the device is spark free. \u003cbr\u003e- Before powering on, please turn volume knob to the left side to turn it off. After powering on, turn the volume knob to the right side to turn it on. So there is no impact when powering on.\u003cbr\u003e- Please not directly plug or unplug the power supply to turn it on\/off. Please turn the amplifier on\/off to power on\/off. \u003cbr\u003e- Power supply above 4A is recommended. The high the voltage, the larger the output power. \u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63040\/63040-01.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63040\/63040-02.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63040\/63040-03.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63040\/63040-04.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63040\/63040-05.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63040\/63040-06.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63040\/63040-07.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63040\/63040-08.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63040\/63040-09.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63040\/63040-10.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63040\/63040-11.jpg\" style=\"width: 800px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63040\/63040-12.jpg\" style=\"width: 799.183px; height: 823.25px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003e\u003cbr\u003eBT Connection to Your Cellphone:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- Turn knob 1 to BT channel: Counting from the left side, the second gear of knob 1 is BT channel. \u003cbr\u003e- Open Bluetooth in your cellphone, and you can find Popuaudio in the list. Just match to link. \u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63040\/63040-13.jpg\" style=\"width: 800px;\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824622940209,"sku":"63040","price":49.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076833984561_watermarked_0.jpg_0.png?v=1768026936"},{"product_id":"2-channel-class-d-amplifier-digital-power-amplifier-hifi-amp-venus-support-bluetooth-5-0","title":"2 Channel Class D Amplifier Digital Power Amplifier HiFi Amp Venus Support Bluetooth 5.0","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- Power Output: 160W+160W @4Ω Load \u003cbr\u003e- D2 Audio 8-channel professional audio editable processor supports 24Bit 192K\u003cbr\u003e- One button to switch between original sound and tube amp sound \u003cbr\u003e- Lower power consumption with high efficiency. 2.5W standby power (3.5W if plus USB module)\u003cbr\u003e- Adjustable gains for bass tone and treble tone \u003cbr\u003e- 8pcs large current Mosfet outperform integrated IC amplifiers \u003cbr\u003e- 4-layer PCB board minimizes interference \u003cbr\u003e- Coaxial, Optical, Analog Audio, and USB (Optional) Input \u003cbr\u003e- Coaxial and USB module asynchronous adaptive 24bit\/32KHz-192KHz\u003cbr\u003e- Built-in multiple power purification circuit, enabling clean sound and quiet background\u003cbr\u003e- Leading zero static neutral-point voltage \u003cbr\u003e- Over-temperature and over-load protection \u003cbr\u003e- Built-in LLC high-performance switch power supply \u003cbr\u003e- You can control its volume via a remote control\u003cbr\u003e\u003cb\u003e\u003cbr\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Type: Class-D Amplifier \u003cbr\u003e- Power: 160*2, 4 OHM Max. \u003cbr\u003e- Frequency Response: 20Hz-20KHz \u003cbr\u003e- SNR: \u0026gt;105Db \u003cbr\u003e- Distortion: \u0026lt;0.01% 1KHz 100W \u003cbr\u003e- Sampling Rate: Self-adaptive 24bit 32KHz-192KHz \u003cbr\u003e- Remote Control: Yes \u003cbr\u003e- Display: 2-Digit Digital Tube \u003cbr\u003e- Input Ways: Digital, Analog Audio Signals \u003cbr\u003e- Input Groups: Coaxial, Optical, Analog Audio, USB (Optional) Groups \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Set of Amplifier \u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003e\u003cbr\u003eNote: Instructions is not offered. Please pay attention to the pictures below to know more about functions. Thank you! \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cimg style=\"width: 700px;\" src=\"https:\/\/www.byimg.com\/catalog\/201910\/63041\/63041-07.jpg\"\u003e\u003cbr\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201910\/63041\/63041-01.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201910\/63041\/63041-03.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 700px;\" src=\"https:\/\/www.byimg.com\/catalog\/201910\/63041\/63041-04.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 700px;\" src=\"https:\/\/www.byimg.com\/catalog\/201910\/63041\/63041-05.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 700px;\" src=\"https:\/\/www.byimg.com\/catalog\/201910\/63041\/63041-06.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824622972977,"sku":"63041","price":327.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076834017329_watermarked_0.jpg_0.png?v=1768026921"},{"product_id":"2-channel-class-d-amplifier-digital-power-amplifier-hifi-amp-venus-usb-support-dsd128","title":"2 Channel Class D Amplifier Digital Power Amplifier HiFi Amp Venus USB Support DSD128","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- Power Output: 160W+160W @4Ω Load \u003cbr\u003e- D2 Audio 8-channel professional audio editable processor supports 24Bit 192K\u003cbr\u003e- One button to switch between original sound and tube amp sound \u003cbr\u003e- Lower power consumption with high efficiency. 2.5W standby power (3.5W if plus USB module)\u003cbr\u003e- Adjustable gains for bass tone and treble tone \u003cbr\u003e- 8pcs large current Mosfet outperform integrated IC amplifiers \u003cbr\u003e- 4-layer PCB board minimizes interference \u003cbr\u003e- Coaxial, Optical, Analog Audio, and USB Input \u003cbr\u003e- Coaxial and USB module asynchronous adaptive 24bit\/32KHz-192KHz\u003cbr\u003e- Built-in multiple power purification circuit, enabling clean sound and quiet background\u003cbr\u003e- Leading zero static neutral-point voltage \u003cbr\u003e- Over-temperature and over-load protection \u003cbr\u003e- Built-in LLC high-performance switch power supply \u003cbr\u003e- You can control its volume via a remote control\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Type: Class-D Amplifier \u003cbr\u003e- Power: 160*2, 4 OHM Max. \u003cbr\u003e- Frequency Response: 20Hz-20KHz \u003cbr\u003e- SNR: \u0026gt;105Db \u003cbr\u003e- Distortion: \u0026lt;0.01% 1KHz 100W \u003cbr\u003e- Sampling Rate: Self-adaptive 24bit 32KHz-192KHz \u003cbr\u003e- Remote Control: Yes \u003cbr\u003e- Display: 2-Digit Digital Tube \u003cbr\u003e- Input Ways: Digital, Analog Audio Signals \u003cbr\u003e- Input Groups: Coaxial, Optical, Analog Audio, USB Groups \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Set of Amplifier \u003cbr\u003e\u003cb\u003e\u003cbr\u003eDownload USB Drive:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"http:\/\/pan.baidu.com\/s\/1jHtjqnk\"\u003ehttp:\/\/pan.baidu.com\/s\/1jHtjqnk\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote: Instructions is not offered. Please pay attention to the pictures below to know more about functions. Thank you! \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63042\/63041-07.jpg\" style=\"width: 700px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63042\/63041-02.jpg\" style=\"width: 750px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63042\/63041-03.jpg\" style=\"width: 750px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63042\/63041-04.jpg\" style=\"width: 700px;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63042\/63041-05.jpg\" style=\"width: 700px;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201910\/63042\/63041-06.jpg\" style=\"width: 700px;\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824623005745,"sku":"63042","price":359.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076834050097_watermarked_0.jpg_0.png?v=1768026911"},{"product_id":"100w-2-bluetooth-hifi-amplifier-dac-headphone-amplifier-amp-bluetooth-5-0-pa-01-silver","title":"100W*2 Bluetooth HiFi Amplifier DAC Headphone Amplifier Amp Bluetooth 5.0 PA-01 Silver","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e-3-In-1: Power amplifier, decoder and headphone amplifier in one \u003cbr\u003e- ES9018K2M Decoder Chip: Supports 192KHz\/32bit sampling. SNR is up to 127dB. THD is lower than -120dB. It creates HiFi sound for users. \u003cbr\u003e- Soft Start Power Switch: It protects your speakers from impact and interference when the amplifier is on\/off. \u003cbr\u003e- High-frequency Loop Resistance CV Power Management System: It is safe to plug into DC power supply without electric arc generated. \u003cbr\u003e- Against Surge: Protects speakers from being damaged when it turns off. \u003cbr\u003e- BTM308-C Bluetooth Audio Module: With QCC3008 chip, it supports A2DP, AVRCP, HFP, TWS, AAC, I2S, APTX, APTX-LL. 16M SPI FLASH memory chip is used. \u003cbr\u003e- Bluetooth 5.0 Chip: Ensures quality communications, excellent compatibility and amazing performance.\u003cbr\u003e- Compatibility: Fits 99% of mobile phones and tablet PC with Bluetooth. Effective range is up to 10m.\u003cbr\u003e- 3pcs Independent op amp. It is easy to adjust bass and treble. Original relay is used for lossless switching of audio input signals.\u003cbr\u003e- 2-Channel: With total output power up to 200W, 2pcs amplifier IC can drive 6\" and 8\" speakers.\u003cbr\u003e- Special inductors create clearer, more delicate and dynamic sound. Ring closure package, with better anti-interference effect, makes it perfect for high-end digital circuits. \u003cbr\u003e- Enjoy Your Music: With professional HiFi headphone amp chip, you can enjoy music even at night. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Model No.: PA-01\u003cbr\u003e- Device Power: 100W*2\u003cbr\u003e- Headphone Amplifier: 700mW*2@32Ω. 156mW@300Ω\u003cbr\u003e- Power Supply: DC15-24V (Port with outer diameter 5.5mm and inner diameter 2.5mm)\u003cbr\u003e- Impedance: 4-8Ω\u003cbr\u003e- Dimensions: 133 x 36 x 149 mm \u003cbr\u003e- N.W.: About 0.5kg \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x PA-01 Power Amplifier with Antenna \u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824646893617,"sku":"63183","price":61.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076843978801_watermarked_0.jpg_0.png?v=1768024495"},{"product_id":"100w-2-bluetooth-hifi-amplifier-dac-headphone-amplifier-amp-bt5-0-pa-01-silver-power-cord-adapter","title":"100W*2 Bluetooth HiFi Amplifier DAC Headphone Amplifier Amp BT5.0 PA-01 Silver + Power Cord Adapter","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e-3-In-1: Power amplifier, decoder and headphone amplifier in one. \u003cbr\u003e- ES9018K2M Decoder Chip: Supports 192KHz\/32bit sampling. SNR is up to 127dB. THD is lower than -120dB. It creates HiFi sound for users. \u003cbr\u003e- Soft Start Power Switch: It protects your speakers from impact and interference when the amplifier is on\/off. \u003cbr\u003e- High-frequency Loop Resistance CV Power Management System: It is safe to plug into DC power supply without electric arc generated. \u003cbr\u003e- Against Surge: Protects speakers from being damaged when it turns off. \u003cbr\u003e- BTM308-C Bluetooth Audio Module: With QCC3008 chip, it supports A2DP, AVRCP, HFP, TWS, AAC, I2S, APTX, APTX-LL. 16M SPI FLASH memory chip is used. \u003cbr\u003e- Bluetooth 5.0 Chip: Ensures quality communications, excellent compatibility and amazing performance.\u003cbr\u003e- Compatibility: Fits 99% of mobile phones and tablet PC with Bluetooth. Effective range is up to 10m.\u003cbr\u003e- 3pcs Independent op amp. It is easy to adjust bass and treble. Original relay is used for lossless switching of audio input signals.\u003cbr\u003e- 2-Channel: With total output power up to 200W, 2pcs amplifier IC can drive 6\" and 8\" speakers.\u003cbr\u003e- Special inductors create clearer, more delicate and dynamic sound. Ring closure package, with better anti-interference effect, makes it perfect for high-end digital circuits. \u003cbr\u003e- Enjoy Your Music: With professional HiFi headphone amp chip, you can enjoy music even at night. \u003cbr\u003e\u003cb\u003e\u003cbr\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Model No.: PA-01\u003cbr\u003e- Device Power: 100W*2\u003cbr\u003e- Headphone Amplifier: 700mW*2@32Ω. 156mW@300Ω\u003cbr\u003e- Power Supply: DC15-24V (Port with outer diameter 5.5mm and inner diameter 2.5mm)\u003cbr\u003e- Impedance: 4-8Ω\u003cbr\u003e- Dimensions: 133 x 36 x 149 mm \u003cbr\u003e- N.W.: About 0.5kg \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x PA-01 Power Amplifier with Antenna\u003cbr\u003e- 1 x Power Cord \u003cbr\u003e- 1 x Power Adapter \u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824646926385,"sku":"63184","price":73.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076844011569_watermarked_0.jpg_0.png?v=1768024484"},{"product_id":"100w-2-bluetooth-hifi-amplifier-dac-headphone-amplifier-amp-bluetooth-5-0-pa-01-black","title":"100W*2 Bluetooth HiFi Amplifier DAC Headphone Amplifier Amp Bluetooth 5.0 PA-01 Black","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e-3-In-1: Power amplifier, decoder and headphone amplifier in one. \u003cbr\u003e- ES9018K2M Decoder Chip: Supports 192KHz\/32bit sampling. SNR is up to 127dB. THD is lower than -120dB. It creates HiFi sound for users. \u003cbr\u003e- Soft Start Power Switch: It protects your speakers from impact and interference when the amplifier is on\/off. \u003cbr\u003e- High-frequency Loop Resistance CV Power Management System: It is safe to plug into DC power supply without electric arc generated. \u003cbr\u003e- Against Surge: Protects speakers from being damaged when it turns off. \u003cbr\u003e- BTM308-C Bluetooth Audio Module: With QCC3008 chip, it supports A2DP, AVRCP, HFP, TWS, AAC, I2S, APTX, APTX-LL. 16M SPI FLASH memory chip is used. \u003cbr\u003e- Bluetooth 5.0 Chip: Ensures quality communications, excellent compatibility and amazing performance.\u003cbr\u003e- Compatibility: Fits 99% of mobile phones and tablet PC with Bluetooth. Effective range is up to 10m.\u003cbr\u003e- 3pcs Independent op amp. It is easy to adjust bass and treble. Original relay is used for lossless switching of audio input signals.\u003cbr\u003e- 2-Channel: With total output power up to 200W, 2pcs amplifier IC can drive 6\" and 8\" speakers.\u003cbr\u003e- Special inductors create clearer, more delicate and dynamic sound. Ring closure package, with better anti-interference effect, makes it perfect for high-end digital circuits. \u003cbr\u003e- Enjoy Your Music: With professional HiFi headphone amp chip, you can enjoy music even at night. \u003cbr\u003e\u003cb\u003e\u003cbr\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Model No.: PA-01\u003cbr\u003e- Device Power: 100W*2\u003cbr\u003e- Headphone Amplifier: 700mW*2@32Ω. 156mW@300Ω\u003cbr\u003e- Power Supply: DC15-24V (Port with outer diameter 5.5mm and inner diameter 2.5mm)\u003cbr\u003e- Impedance: 4-8Ω\u003cbr\u003e- Dimensions: 133 x 36 x 149 mm \u003cbr\u003e- N.W.: About 0.5kg \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x PA-01 Power Amplifier with Antenna \u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824646959153,"sku":"63185","price":61.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076844044337_watermarked_0.jpg_0.png?v=1768024473"},{"product_id":"100w-2-bluetooth-hifi-amplifier-dac-headphone-amplifier-amp-bt5-0-pa-01-black-power-cord-adapter","title":"100W*2 Bluetooth HiFi Amplifier DAC Headphone Amplifier Amp BT5.0 PA-01 Black + Power Cord Adapter","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e-3-In-1: Power amplifier, decoder and headphone amplifier in one. \u003cbr\u003e- ES9018K2M Decoder Chip: Supports 192KHz\/32bit sampling. SNR is up to 127dB. THD is lower than -120dB. It creates HiFi sound for users. \u003cbr\u003e- Soft Start Power Switch: It protects your speakers from impact and interference when the amplifier is on\/off. \u003cbr\u003e- High-frequency Loop Resistance CV Power Management System: It is safe to plug into DC power supply without electric arc generated. \u003cbr\u003e- Against Surge: Protects speakers from being damaged when it turns off. \u003cbr\u003e- BTM308-C Bluetooth Audio Module: With QCC3008 chip, it supports A2DP, AVRCP, HFP, TWS, AAC, I2S, APTX, APTX-LL. 16M SPI FLASH memory chip is used. \u003cbr\u003e- Bluetooth 5.0 Chip: Ensures quality communications, excellent compatibility and amazing performance.\u003cbr\u003e- Compatibility: Fits 99% of mobile phones and tablet PC with Bluetooth. Effective range is up to 10m.\u003cbr\u003e- 3pcs Independent op amp. It is easy to adjust bass and treble. Original relay is used for lossless switching of audio input signals.\u003cbr\u003e- 2-Channel: With total output power up to 200W, 2pcs amplifier IC can drive 6\" and 8\" speakers.\u003cbr\u003e- Special inductors create clearer, more delicate and dynamic sound. Ring closure package, with better anti-interference effect, makes it perfect for high-end digital circuits. \u003cbr\u003e- Enjoy Your Music: With professional HiFi headphone amp chip, you can enjoy music even at night. \u003cbr\u003e\u003cb\u003e\u003cbr\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Model No.: PA-01\u003cbr\u003e- Device Power: 100W*2\u003cbr\u003e- Headphone Amplifier: 700mW*2@32Ω. 156mW@300Ω\u003cbr\u003e- Power Supply: DC15-24V (Port with outer diameter 5.5mm and inner diameter 2.5mm)\u003cbr\u003e- Impedance: 4-8Ω\u003cbr\u003e- Dimensions: 133 x 36 x 149 mm \u003cbr\u003e- N.W.: About 0.5kg \u003cbr\u003e\u003cb\u003e\u003cbr\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x PA-01 Power Amplifier with Antenna\u003cbr\u003e- 1 x Power Cord \u003cbr\u003e- 1 x Power Adapter \u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824646991921,"sku":"63186","price":73.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076844077105_watermarked_0.jpg_0.png?v=1768024461"},{"product_id":"portable-headphone-amplifier-dac-bluetooth-5-0-dac-280mw-output-w-vacuum-tubes-jc-t1-black","title":"Portable Headphone Amplifier DAC Bluetooth 5.0 DAC 280mW Output w\/ Vacuum Tubes JC-T1 Black","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- Bluetooth 5.0 chip receives signal. \u003cbr\u003e- PCM5102A decoding chip. \u003cbr\u003e- 2pcs vacuum tubes amplify output with fast frequency response and wide dynamics \u003cbr\u003e- Bluetooth supports for APTX low delay, 16Bit\/48KHz sampling rate and sound quality similar to CD. \u003cbr\u003e- Support connection to you cellphones and tablet PC via Bluetooth. Support automatic connection once it has been connected successfully. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Signal Input Way: Wireless Bluetooth \u003cbr\u003e- Signal Output Way: RCA Output \u0026amp; 3.5mm Port for 8-32Ω Headphone \u003cbr\u003e- RCA Output Signal: 3Vrms \u003cbr\u003e- Headphone Output Signal: 280mW \u003cbr\u003e- Bluetooth Signal Input: 16Bit\/48KHz \u003cbr\u003e- Operating Voltage: 12V 1A-5A \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x JC-T1 Main Unit \u003cbr\u003e- 1 x 12V Power Adapter \u003cbr\u003e- 1 x Power Cord \u003cbr\u003e- 1 x Instructions \u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824647057457,"sku":"63188","price":66.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076844142641_watermarked_0.jpg_0.png?v=1768024436"},{"product_id":"pure-class-a-headphone-amplifier-hifi-headphone-amplifier-la5se-mos-fet-with-black-panel","title":"Pure Class A Headphone Amplifier HiFi Headphone Amplifier LA5SE MOS-FET with Black Panel","description":"\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Output Power: (1KHZ sine wave equivalent undistorted power): 300mW\/600 ohms, 1200mW\/32 ohms.\u003cbr\u003e- SNR: \u0026gt;102dB.\u003cbr\u003e- Output Impedance: 47 ohms.\u003cbr\u003e- Voltage Amplification Gain: 19 times in high gain mode.\u003cbr\u003e- Maximum Output Voltage Swing: Greater than ±13V (equivalent to 26V).\u003cbr\u003e- Input Interface: RCA two-channel socket.\u003cbr\u003e- Output Interface: 6.35 headphone output.\u003cbr\u003e- Average Power Consumption: AC 220V\u0026lt;15W.\u003cbr\u003e- N.W.: 2.2 kg.\u003cbr\u003e\u003cb\u003e\u003cbr\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Class A Headphone Amplifier with Black Panel \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote: \u003cbr\u003e- Due to pure class A amplifier, it generates heat. Thank you for your understanding! \u003cbr\u003e- It is designed for high-end headphones, such as HD600, HD650, HD800, DT880, T1, K601 and K701. We have reference tuning for most headphones.\u003cbr\u003e- Its op amps work at voltages above 20V.\u003cbr\u003e- The amp has high gain and high power, so it is not suitable for small earplugs.\u003cbr\u003e- It is perfect for K701, HD650 HD800, 600 ohms DT880 and T1.\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824647352369,"sku":"63191","price":118.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076844273713_watermarked_0.jpg_0.png?v=1768024404"},{"product_id":"pure-class-a-headphone-amplifier-hifi-headphone-amplifier-la5se-mos-fet-with-silver-panel","title":"Pure Class A Headphone Amplifier HiFi Headphone Amplifier LA5SE MOS-FET with Silver Panel","description":"\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Output Power: (1KHZ sine wave equivalent undistorted power): 300mW\/600 ohms, 1200mW\/32 ohms.\u003cbr\u003e- SNR: \u0026gt;102dB.\u003cbr\u003e- Output Impedance: 47 ohms.\u003cbr\u003e- Voltage Amplification Gain: 19 times in high gain mode.\u003cbr\u003e- Maximum Output Voltage Swing: Greater than ±13V (equivalent to 26V).\u003cbr\u003e- Input Interface: RCA two-channel socket.\u003cbr\u003e- Output Interface: 6.35 headphone output.\u003cbr\u003e- Average Power Consumption: AC 220V\u0026lt;15W.\u003cbr\u003e- N.W.: 2.2 kg.\u003cbr\u003e\u003cb\u003e\u003cbr\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Class A Headphone Amplifier with Silver Panel \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote: \u003cbr\u003e- Due to pure class A amplifier, it generates heat. Thank you for your understanding! \u003cbr\u003e- It is designed for high-end headphones, such as HD600, HD650, HD800, DT880, T1, K601 and K701. We have reference tuning for most headphones.\u003cbr\u003e- Its op amps work at voltages above 20V.\u003cbr\u003e- The amp has high gain and high power, so it is not suitable for small earplugs.\u003cbr\u003e- It is perfect for K701, HD650 HD800, 600 ohms DT880 and T1.\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824647385137,"sku":"63192","price":118.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076844306481_watermarked_0.jpg_0.png?v=1768024396"},{"product_id":"20w-2-pure-class-a-power-amplifier-hifi-headphone-amplifier-finished-l-passam-se","title":"20W*2 Pure Class A Power Amplifier HiFi Headphone Amplifier Finished L.PassAm Se","description":"\u003cp\u003e\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003eL.PassAm Se Pure Class A Amplifier is a desktop amplifier with excellent performace in low frequency, driving force and damping. Its SNR is better controlled. The output power of each channel is tested to be 20W @±21V \u0026amp; 1.2A quiescent current. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- Based on classic PassAm circuit and Pass A30, it outputs 20W*2.\u003cbr\u003e- Six 15000 uf capacitors form a CRC filter with a total filtering capacity of 90000 uf. Left and right channels are filtered independently, which reduces ripple and improves overall resolution.\u003cbr\u003e- Each channel's upc1237 systems protects your speaker from impact or being damaged when the amplifier turns on\/off. \u003cbr\u003e- It is designed with a volume knob. \u003cbr\u003e- A midpoint trimming circuit is added to differential input section to address midpoint offset problem to some extent. \u003cbr\u003e- 2-way audio input can be switched by Input Sel in the front panel. Signal relay is used to switch the input selection. \u003cbr\u003e- Heatsink about 3kg is used together with aluminum shell for amazing heat dissipation. \u003cbr\u003e- With adjustable output impedance, it supports for high-impedance headphones such as AKG.\u003cbr\u003e- Quality is guaranteed. 6cps capacitors, 200W transformer, ALPS and the like are adopted. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eFront Panel Introduction:\u003c\/b\u003e\u003cbr\u003e- Output Sel: You can choose headphone output or speakers output. \u003cbr\u003e- Impedance Sel: It is an output impedance selection switch for headphone port, which can be used to various headphones. When a high impedance output is required, the switch is toggled downward. At this time, the power amplifier is suitable for 600 ohm high impedance headphones such as T1. It can greatly improve control and damping, making the sound more calm. When it needs to push a low-impedance earphone such as K701 that requires a large current, the switch turns upwards. At this time, dynamics and low frequency strength of headphones can be greatly improved. Attention: If some small earphones or even earbuds designed for direct push are used, it is recommended to turn the switch downwards. In this way, the output power is reduced correspondingly on low-impedance earphones to avoid being over drived or even damaged.\u003cbr\u003e- Input Sel: There are two groups of input ports in the rear panel. You can choose one group via this button. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eBasic Parameters:\u003c\/b\u003e\u003cbr\u003e- Max. Output Power (Distortionless): 20W*2\u003cbr\u003e- Headphone Output Power: 400mW\/600 ohms, 1500mW\/32 ohms.\u003cbr\u003e- Distortion: 1KHz sine wave 20W output \u0026lt;0.01%\u003cbr\u003e- Input Sensitivity: \u0026lt;0.4Vrms\u003cbr\u003e- Amplifier Voltage Gain: 22 times\u003cbr\u003e- Power Supply Voltage: AC220V \u003cbr\u003e- Max. Power Consumption: \u0026lt;150W\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Finished Amplifier \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote: Optional Colors: Black Panel, Silver Panel. Please choose the color you want when purchasing. Thank you! \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824648237105,"sku":"63194","price":245.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076844404785_watermarked_0.jpg_0.png?v=1768024369"},{"product_id":"rf-biaser-bias-tee-10mhz-6ghz-f-ham-radio-rtl-sdr-lna-low-noise-amplifier-new","title":"RF Biaser Bias Tee 10MHz-6GHz F HAM Radio RTL SDR LNA Low Noise Amplifier New","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003cbr\u003e* The wideband amplifier feed circuit, the high frequency is affected by the parasitic capacitance parameters, and the performance drops sharply, so the feed needs to use BiasTee.\u003cbr\u003e* BiasTee consists of ultra-wideband, near idealized, high frequency inductors and capacitors without resonance points.\u003cbr\u003e* DC blocking capacitor: DC blocking to prevent DC voltage leakage to subsequent circuits or test instruments;\u003cbr\u003e* High-frequency inductor: Isolation of AC information to prevent high-frequency signals from leaking into the power supply system.\u003cbr\u003e* Fine workmanship and good performance.\u003cbr\u003e* Long service life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003cbr\u003e- Brand new and high quality\u003cbr\u003e- Maximum Operating Current: ＜0.5A\u003cbr\u003e- Insertion Loss: ＜1.2dB\u003cbr\u003e- Operating Frequency: 10MHZ-6GHz\u003cbr\u003e- Working Voltage: DC1-50V\u003cbr\u003e- Color: as shown\u003cbr\u003e- Material: Electric components\u003cbr\u003e- Dimension: 32x42x12mm\/ 1.34* 1.65* 0.47\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication range:\u003c\/strong\u003e\u003cbr\u003eA) Broadband amplifier: Some broadband amplifiers do not have a DC blocking capacitor inside, and the output needs to be powered. A bias is required. Some amplifiers have internal isolation capacitors that eliminate the need for an additional bias.\u003cbr\u003eB) Optical fiber communication, laser drive: The driving current required by the laser diode is injected through the DC terminal of the bias; Communication data is injected through the RF side.\u003cbr\u003eC) Optical modulation drive\u003cbr\u003eD) Application of other test and measurement aspects\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackage Included:\u003c\/strong\u003e\u003cbr\u003e- 1 x 10MHz-6GHz Bias Tee + case\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824667504689,"sku":"63301","price":15.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076851187761_watermarked_0.jpg_0.png?v=1768022464"},{"product_id":"mini-dac-xu208-usb-dac-headphone-amplifier-dsd1796-chip-support-coaxial-optical-input-modes","title":"Mini DAC XU208 USB DAC Headphone Amplifier DSD1796 Chip Support Coaxial Optical Input Modes","description":"\u003cp\u003e\u003cb\u003eFeatures: \u003c\/b\u003e\u003cbr\u003e- Thanks to XU208 solution, its sound quality is better than that of Italian Amanero. \u003cbr\u003e- Enables coaxial and optical inputs. The input ports can be connected to TV, DVD, set-top box and the like. Its output port can be connected to external speakers, enhancing sound quality.\u003cbr\u003e- Front panel is designed with power supply switch to select powering ways. Indicators clearly show you the input status of USB\/Opt\/Spdif. \u003cbr\u003e- Reduce the impact of DSD and PCM playing conversion. \u003cbr\u003e- With volume control of the headphone amplifier. \u003cbr\u003e- USB decoding supports DSD native mode for better details and sound field. \u003cbr\u003e- American DSD1796 decoding chip is adopted, which outperforming ordinary PCM chips. \u003cbr\u003e- 3pcs JRC4580 op amps are pluggable for easy replacement. Plug in correct direction or damage might occur due to reverse connection. \u003cbr\u003e- It can be powered via USB port, by external power supply, or by other USB port. It supports power banks, other USB ports of set-top boxes and TVs. Supply voltage 5V with current over 0.5A. \u003cbr\u003e- USB port supports for OTG connection to Android cellphones, set-top boxes, Apple PC, iPhone cellphone (extra accessories are needed), Linux and Delphi systems without driver (Require external power supply and move the switch on the front panel to USB). It supports for cellphones with Android system above 5.0. Installation for HiBy Music player is not required.\u003cbr\u003e- Made of aluminum, its shell weighs only 300g. \u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003e\u003cbr\u003eAttention: CD and instructions are not included in the package. Please download driver, player and plug-in components. Connection to cellphone requires no driver. \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003eDownload Here: \u003ca href=\"https:\/\/pan.baidu.com\/s\/1Mg2dH5l7M7jF9-UW_pSqow\"\u003ehttps:\/\/pan.baidu.com\/s\/1Mg2dH5l7M7jF9-UW_pSqow\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003eSome versions do not support DSD. It is recommended to use this link. Operation in administrator mode for WIN10 is recommended. \u003cbr\u003e\u003cbr\u003eWhen playing music in DSD format, your computer system volume should be adjusted to 100, otherwise it will be mute. If you use this DAC to watch movies, network videos, etc., please set XMOS as the default device.\u003cbr\u003e\u003cbr\u003eDownload DSD Music Test File:\u003cbr\u003eDSD64: \u003ca href=\"http:\/\/pan.baidu.com\/s\/1bnGWI2V\"\u003ehttp:\/\/pan.baidu.com\/s\/1bnGWI2V\u003c\/a\u003e\u003cbr\u003eDSD128: \u003ca href=\"https:\/\/pan.baidu.com\/s\/1GWZT4eP8PN_C9F0Kx76eJg\"\u003ehttps:\/\/pan.baidu.com\/s\/1GWZT4eP8PN_C9F0Kx76eJg\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Power Supply Port: Powered via USB port or by external power supply. (Please not exceed 5V)\u003cbr\u003e- Requirement of External Power Supply: DC 5V, \u0026gt;0.5A. Port Specifications: DC3.5-1.3mm\u003cbr\u003e- Coaxial \u0026amp; Optical Input Working Current: 60mA\u003cbr\u003e- USB Input Working Current: 200mA\u003cbr\u003e- Headphone Power: 130mW\/32Ω\u003cbr\u003e- Audio Output Distortion: 0.008%\u003cbr\u003e- Audio Output Amplitude: 2.1V RMS \u003cbr\u003e- Coaxial Supports Format: PCM 44.1k-192k\/24bit\u003cbr\u003e- Optical Supports Format: PCM 44.1k-96k\/24bit\u003cbr\u003e- Supported USB Decoding Formats: PCM 44.1k-384k\/32bit \u0026amp; DSD64-DSD256 Automatic Recognition to Decode (Not for DXD format)\u003cbr\u003e- N.W.: 300g \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x DAC \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote: \u003cbr\u003e- USB port does not support U disk or hard disk, but it can be connected to a computer or mobile phone OTG. For connection to iPhone cellphones, please purchase other needed accessories to match. \u003cbr\u003e- When there is only optical input, it decodes optical signals. When the decoder connects to a coaxial cable, please select input modes by the switch on the front panel. \u003cbr\u003e- The DAC not for decoding DXD.\u003cbr\u003e- When it is connected to external power supply and there are some noises, please replug your 3.5mm power cord.\u003cbr\u003e- When USB port is connected to your cellphone, external power supply is needed. \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824675139633,"sku":"63370","price":69.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076854890545_watermarked_0.jpg_0.png?v=1768021436"},{"product_id":"es9038q2m-headphone-amplifier-audio-dac-decoder-sa9227-type-c-portable-hifi-decoder-dsd256","title":"ES9038Q2M Headphone Amplifier Audio DAC Decoder SA9227 type-c Portable HIFI Decoder DSD256","description":"\u003cp\u003e\u003cb\u003eSpecification:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eSupport system:\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e1 : WIN7, WIN8, WIN10, (need to install the driver we provide)\u003c\/p\u003e\n\u003cp\u003eNote: XP is not supported\u003c\/p\u003e\n\u003cp\u003e2 : Native MacOS uses the system's own drive\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSupported sample rates:\u003c\/p\u003e\n\u003cp\u003e- PCM : 16\/24\/32 bit 44.1\/48\/ 88.2\/ 96\/ 176.4\/ 192\/\u003c\/p\u003e\n\u003cp\u003e     352.8\/ 384KHZ\u003c\/p\u003e\n\u003cp\u003e- DSD: 64\/128\/256( \u003cspan style=\"color: #ff0000;\"\u003eDSD256 required version FB2000 support)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e- Power and signal input:Type-C interface \u003c\/p\u003e\n\u003cp\u003e- Volume adjustment:Computer adjustment, volume button adjustment\u003c\/p\u003e\n\u003cp\u003e - Analog output:3.5MM headphone \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eillustrate in detail:\u003c\/p\u003e\n\u003cp\u003e1 : PCB is designed with double-layer technology to ensure good current and current pass performance\u003c\/p\u003e\n\u003cp\u003e2: Crystal oscillator\u003c\/p\u003e\n\u003cp\u003e3: Special development program, complete chip optimization, with better signal integrity , less signal distortion\u003c\/p\u003e\n\u003cp\u003e4: Dual op amps are used, and the op amps are powered by positive and negative power supplies.\u003c\/p\u003e\n\u003cp\u003e5 : Product size 100*31.5*10mm\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePackage list:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e- 1pcs* ES9038q2m DAC board\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824682905649,"sku":"63446","price":77.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076858757169_watermarked_0.jpg_0.png?v=1768020237"},{"product_id":"hifi-wireless-bluetooth-5-0-tpa3116-digital-power-audio-amplifier-board-tpa3116d2-50wx2-stereo-amp-amplificador-home-theater","title":"HIFI Wireless Bluetooth 5.0 TPA3116 Digital Power Audio Amplifier board TPA3116D2 50WX2 Stereo AMP Amplification Home Theater","description":"\u003cp\u003e\u003cb\u003eDescription:     \u003c\/b\u003e        \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAUX audio input + Bluetooth 2-in-1 HIFI level with filter 50Wx2 Bluetooth digital power amplifier board\u003c\/p\u003e\n\u003cp\u003enote! The heat sink with 3M glue needs to be pasted onto the chip, please refer to the description picture. The hotter the 3M glue, the better the thermal conductivity. The shell version requires you to assemble the shell and a screwdriver will be provided with the product.\u003c\/p\u003e\n\u003cp\u003eThis product is full of materials, high performance, high price, high quality power amplifier for HIFI music.\u003c\/p\u003e\n\u003cp\u003eThe TPA3116D2 is a Class D amplifier IC from TI that has very high index parameters. The modulation frequency can be up to 1.2MHZ, and the high power output distortion is less than 0.1%.\u003c\/p\u003e\n\u003cp\u003eWith AUX and Bluetooth two audio input methods, 2-in-1;\u003c\/p\u003e\n\u003cp\u003eThe potentiometer adjusts the volume with a switch for easy control of the volume, making it ideal for DIY speakers.\u003c\/p\u003e\n\u003cp\u003eWith a filter inductor, the sound is round and clear.\u003c\/p\u003e\n\u003cp\u003eIt adopts copper DC connector and fence type terminal. It can withstand large current, no heat, no damage to the wire, good wiring and short circuit.\u003c\/p\u003e\n\u003cp\u003eFree DC head lead, compatible with the input power interface of this product, even if you don't have a DC head adapter or battery, it can be easily wired.\u003c\/p\u003e\n\u003cp\u003e5.0 Bluetooth version, the transmission efficiency is higher, the transmission distance is farther.\u003c\/p\u003e\n\u003cp\u003ePrecautions for use: The power switch on the board is the standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or unplug the DC plug on the machine for a long time.\u003c\/p\u003e\n\u003cp\u003eQuestion and answer:\u003c\/p\u003e\n\u003cp\u003e1. How to choose a power supply?\u003c\/p\u003e\n\u003cp\u003eThe power supply with the board is critical. The higher the voltage, the higher the current and the better the output power. If you only have 12V 1A, you can bring a 3-4 inch speaker. If you are 19V 5A or above, there is no problem with 8-10 inches, and the power supply must be highly valued. If the voltage is too low, the sound will be distorted after the sound is amplified. If the current is too small, the speaker will pull the voltage low, work abnormally or the sound quality will deteriorate.\u003c\/p\u003e\n\u003cp\u003eIt is recommended to use 18V19V24V power supply with current above 3A. If you only have 9V12V or 1A 2A power supply, it can also be used but the power is small. Please pay attention to the maximum volume when using it, which may affect the sound quality.\u003c\/p\u003e\n\u003cp\u003e2. How to choose a speaker?\u003c\/p\u003e\n\u003cp\u003eCommonly used speakers are generally 8 ohms, can not distinguish between positive and negative, the effect is the same, 4 ohm speakers can also be used.\u003c\/p\u003e\n\u003cp\u003eIf your speaker power is small, it may be used between 10W-30W. The power supply voltage is small to prevent the amplifier from burning out after burning. For example, select a power supply below 15V.\u003c\/p\u003e\n\u003cp\u003eIf you are a 50W-200w speaker, don't worry about the speaker burnout. You can choose 12-24V power supply. The higher the voltage you choose, the louder the output sound or power.\u003c\/p\u003e\n\u003cp\u003e3. How to choose Bluetooth or AUX audio input mode?\u003c\/p\u003e\n\u003cp\u003ePower on the power amplifier, connect the speaker, turn the audio knob blue light to turn on, turn on the phone settings - Bluetooth - search for \"BT-WUZHI\", and then click the connection, there will be a beep when the connection is successful, this When it is in Bluetooth mode, you can play music. The next time you power on, it will automatically connect with the phone.\u003c\/p\u003e\n\u003cp\u003eIf you want to use AUX audio input, then disconnect the Bluetooth connection, there will be a voice prompt, insert the audio cable to play music. In AUX (LINE IN) mode, Bluetooth is automatically switched to Bluetooth mode.\u003c\/p\u003e\n\u003cp\u003e4. When the sound becomes louder, the phenomenon of turbid sound appears.\u003c\/p\u003e\n\u003cp\u003eThe sound is distorted. Please change the adapter power supply with a higher voltage rating.\u003c\/p\u003e\n\u003cp\u003e5. After the sound becomes louder, the sound is stuck.\u003c\/p\u003e\n\u003cp\u003eThe input power is insufficient, and the power supply itself is intermittently powered off. Please replace the power supply with a larger power.\u003c\/p\u003e\n\u003cp\u003eOr the output power is too large, the power amplifier board is seriously heated, and thermal protection occurs, reducing power usage or enhancing heat dissipation.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"font-family: 'Open Sans', Arial, Helvetica, sans-serif, Heiti; font-size: 14px; background-color: rgb(242, 242, 242);\"\u003e\n\u003cdiv class=\"product-overview\"\u003e\n\u003cdiv id=\"product-description\" data-spm=\"1000023\" class=\"product-description\" style=\"width: 984px; padding: 20px; overflow: hidden; background-color: rgb(255, 255, 255); border-top-left-radius: 5px; border-top-right-radius: 5px; border-bottom-right-radius: 5px; border-bottom-left-radius: 5px; margin-bottom: 16px; position: relative;\"\u003e\n\u003cdiv class=\"origin-part box-sizing\"\u003e\n\u003cp data-spm-anchor-id=\"a2g0o.detail.1000023.i1.3b6f5a06yhHh8u\" style=\"margin: 13.45pt 0cm; line-height: inherit;\"\u003e\u003cspan style=\"max-width: 100%; word-break: break-word; font-family: 'Times New Roman', Times, serif;\"\u003e\u003cspan style=\"max-width: 100%; word-break: break-word; font-size: 20px;\"\u003e\u003cspan style=\"max-width: 100%; word-break: break-word;\"\u003e\u003cspan lang=\"EN-US\" style=\"max-width: 100%; word-break: break-word;\"\u003e\u003cspan style=\"max-width: 100%; word-break: break-word;\"\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Hb0fa3f653a5b4800b19e77d726db514eD.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" style=\"border-style: none; max-width: 100%;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/H7f1b01b5ab884c84b26d7750ece01d89h.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" style=\"border-style: none; max-width: 100%;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/H6b4cdb9fcb67490e9c7a94abcdcadca4r.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" style=\"border-style: none; max-width: 100%;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Hd3f85200d14b4c8b8e469446d3e223551.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" style=\"border-style: none; max-width: 100%;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/H1ef7b73706cc49309e43ab27d491c3a8w.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" style=\"border-style: none; max-width: 100%;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/He0c65ac951404f8ab11aa11caff47060A.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" style=\"border-style: none; max-width: 100%;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/H70aed04cb5fd4eb0942d3c68d2d7f53dw.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\" style=\"border-style: none; max-width: 100%;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824688246833,"sku":"63474","price":12.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076860919857_watermarked_0.jpg_0.png?v=1768019788"},{"product_id":"tzt-audio-sta326-30w-2-60w-2-1-stereo-amplifier-csr8675-bluetooth-5-0-fiber-coaxial-usb-input-audio-amplifier-with-oled-screen","title":"TZT Audio STA326 30W*2+60W 2.1 Stereo Amplifier CSR8675 Bluetooth 5.0 Fiber coaxial USB input Audio Amplifier with OLED screen","description":"\u003ch4\u003e\u003cb\u003eSpecification:\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003e- Working method: Class D\u003c\/p\u003e\n\u003cp\u003e- Working voltage: DC24-32V\u003c\/p\u003e\n\u003cp\u003e- Current: 2A or more\u003c\/p\u003e\n\u003cp\u003e- Power:30W*2+60W\u003c\/p\u003e\n\u003cp\u003e- Work efficiency：90%\u003c\/p\u003e\n\u003cp\u003e- frequency：20-20KHZ\u003c\/p\u003e\n\u003cp\u003e- USB Bluetooth support max 96K\u003c\/p\u003e\n\u003cp\u003e- Fiber coaxial support max 196K\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePackage included:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e - 1PC STA326 Audio Amplifier (without supply power)\u003c\/p\u003e","brand":"TZT","offers":[{"title":"Default Title","offer_id":40824688836657,"sku":"63478","price":75.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076861116465_watermarked_0.jpg_0.png?v=1768019735"},{"product_id":"hifi-headphone-amplifier-for-pc-cellphones-preamplifer-for-active-speakers-w-original-transformer","title":"Hifi Headphone Amplifier For PC Cellphones Preamplifer for Active Speakers (w\/ Original Transformer)","description":"\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Item Name: Desktop Headphone Amplifier \u003cbr\u003e- Model No.: HPA-3\u003cbr\u003e- Dimensions: 280 x 110 x 44mm \u003cbr\u003e- Condition: Brand New \u003cbr\u003e- Amplification: Transistor \u003cbr\u003e- Frequency Response: 10Hz-35KHz (-0.3db to -1db)\u003cbr\u003e- Distortion Degree: \u0026lt;0.001% (6mW\/300R)\u003cbr\u003e- SNR: \u0026gt;95db\u003cbr\u003e- Output Power: 200mW\/300R; 400mW\/60R\u003cbr\u003e- Power Consumption: \u0026lt;5W \u003cbr\u003e- Input Impedance: 47 KΩ\u003cbr\u003e- Compatible Impedance: 8-2KΩ\u003cbr\u003e- Power Supply: 220V AC \u003cbr\u003e- LINE OUT: 60Ω\u003cbr\u003e- PHONE OUT: 5Ω\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- High density, full sound, balance, high resolution, high dynamics, good high frequency extension\u003cbr\u003e- When the magnification times is set to be 0dB, it stands out in its driving force for HD650 against medium to high frequency \u003cbr\u003e- High quality sound quality, tone quality and style, featuring open, balanced and loose sound field \u003cbr\u003e- Has passed strict AP tests before hitting the market \u003cbr\u003e- Compatible with mainstream Hifi headphones \u003cbr\u003e- Layout and circuit as the same as the original one \u003cbr\u003e- IC socket for easy replacement of operational amp \u003cbr\u003e- Audio dedicated resistors for excellent sound quality \u003cbr\u003e- Original electrolysis \u003cbr\u003e- Chemical Electrolysis: Clean high-frequency and low-resistance background, excellent extension at medium frequency\u003cbr\u003e- Premium quality for using NRJHF-1-AU \u003cbr\u003e- High quality for adopting ECE dip switch \u003cbr\u003e- Gold-plated fuse for fine sound quality \u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201912\/63515\/63515-01.jpg\" style=\"width: 750px;\"\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201912\/63515\/63515-02.jpg\" style=\"width: 750px;\"\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201912\/63515\/63515-03.jpg\" style=\"width: 750px;\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003e① Power Indicator \u003cbr\u003e② 6.35 Output Headphone Interface \u003cbr\u003e③ Volume Knob\u003c\/b\u003e\u003cbr\u003e\u003cb\u003e\u003cbr\u003e④ 2 RCA Signal Input Interfaces \u003cbr\u003e⑤ 2 RCA Signal Output Interfaces (As a preamplifier which outputs to active speakers)\u003cbr\u003e⑥ Power Switch \u003cbr\u003e⑦ Fuse (Can be replaced by 5x20mm)\u003cbr\u003e⑧ AC Power Supply Socket \u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e⑨ USB Signal Input \u003cbr\u003e⑩ 2 RCA Signal Output Interfaces (As a preamplifier which outputs to active speakers)\u003cbr\u003e⑪ 2 RCA Signal Input Interfaces \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Headphone Amplifier \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote: \u003cbr\u003e- It is finished and ready to use. \u003cbr\u003e- There are two colors for the front panel. And items with different front panels will be delivered at random. \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824697126961,"sku":"63515","price":231.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076863967281_watermarked_0.jpg_0.png?v=1768019041"},{"product_id":"hifi-headphone-amplifier-for-pc-cellphones-preamplifer-for-active-speakers-w-usb-decoding","title":"Hifi Headphone Amplifier For PC Cellphones Preamplifer for Active Speakers (w\/ USB Decoding)","description":"\u003cp\u003e\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003eSa9023 and es9018k2m solution are added to this amp. The USB DAC amplifier supports 24\/96. Its USB decoding interface is built for connection to your PC or iPad, enabling high decoding quality. \u003cbr\u003e \u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Item Name: Desktop Headphone Amplifier \u003cbr\u003e- Model No.: HPA-3\u003cbr\u003e- Dimensions: 280 x 110 x 44mm \u003cbr\u003e- Condition: Brand New \u003cbr\u003e- Amplification: Transistor \u003cbr\u003e- Frequency Response: 10Hz-35KHz (-0.3db to -1db)\u003cbr\u003e- Distortion Degree: \u0026lt;0.001% (6mW\/300R)\u003cbr\u003e- SNR: \u0026gt;95db\u003cbr\u003e- Output Power: 200mW\/300R; 400mW\/60R\u003cbr\u003e- Power Consumption: \u0026lt;5W \u003cbr\u003e- Input Impedance: 47 KΩ\u003cbr\u003e- Compatible Impedance: 8-2KΩ\u003cbr\u003e- Power Supply: 220V AC \u003cbr\u003e- LINE OUT: 60Ω\u003cbr\u003e- PHONE OUT: 5Ω\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- USB DAC amplifier in one \u003cbr\u003e- High density, full sound, balance, high resolution, high dynamics, good high frequency extension\u003cbr\u003e- When the magnification times is set to be 0dB, it stands out in its driving force for HD650 against medium to high frequency \u003cbr\u003e- High quality sound quality, tone quality and style, featuring open, balanced and loose sound field \u003cbr\u003e- Has passed strict AP tests before hitting the market \u003cbr\u003e- Compatible with mainstream Hifi headphones. This version doesn't support USB connection to your cellphone. While it supports 3.5 to dual RCA cable for connection to your mobile phone. \u003cbr\u003e- Layout and circuit as the same as the original one \u003cbr\u003e- IC socket for easy replacement of operational amp \u003cbr\u003e- Audio dedicated resistors for excellent sound quality \u003cbr\u003e- Original electrolysis \u003cbr\u003e- Chemical Electrolysis: Clean high-frequency and low-resistance background, excellent extension at medium frequency\u003cbr\u003e- Premium quality for using NRJHF-1-AU \u003cbr\u003e- High quality for adopting ECE dip switch \u003cbr\u003e- Gold-plated fuse for fine sound quality \u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201912\/63516\/63515-01.jpg\" style=\"width: 750px;\"\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201912\/63516\/63515-02.jpg\" style=\"width: 750px;\"\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/www.byimg.com\/catalog\/201912\/63516\/63515-03.jpg\" style=\"width: 750px;\"\u003e\u003cbr\u003e\u003cb\u003e\u003cbr\u003e① Power Indicator \u003cbr\u003e② 6.35 Output Headphone Interface \u003cbr\u003e③ Volume Knob\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e④ 2 RCA Signal Input Interfaces \u003cbr\u003e⑤ 2 RCA Signal Output Interfaces (As a preamplifier which outputs to active speakers)\u003cbr\u003e\u003cb\u003e⑥ Power Switch \u003cbr\u003e⑦ Fuse (Can be replaced by 5x20mm)\u003cbr\u003e⑧ AC Power Supply Socket \u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003e⑨ USB Signal Input \u003cbr\u003e⑩ 2 RCA Signal Output Interfaces (As a preamplifier which outputs to active speakers)\u003cbr\u003e⑪ 2 RCA Signal Input Interfaces \u003cbr\u003e\u003cbr\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Headphone Amplifier \u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003e\u003cbr\u003eNote: \u003cbr\u003e- It is finished and ready to use. \u003cbr\u003e- There are two colors for the front panel. And items with different front panels will be delivered at random. \u003cbr\u003e- The DAC version doesn't support USB connection to your cellphone. While it supports 3.5 to dual RCA cable for connection to your mobile phone. \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824697159729,"sku":"63516","price":265.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076864000049_watermarked_0.jpg_0.png?v=1768019029"},{"product_id":"function-generator-amplifier-arbitrary-waveform-signal-amplifier-power-amp-fpa301-20w-5mhz","title":"Function Generator Amplifier Arbitrary Waveform Signal Amplifier Power Amp FPA301-20W 5MHz","description":"\u003cp\u003e\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003eFPA301 series DC power amplifier uses imported integrated devices, full-band amplification: sine wave, square wave, pulse wave, sawtooth wave, reverse sawtooth wave, triangle wave, electrocardiogram wave, saddle wave and noise wave, etc. The signal amplitude is 28Vpp (plus or minus 14V).\u003cbr\u003e\u003cb\u003e\u003cbr\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e◆ Low distortion and high precision signal amplification, compatible with all DDS signal sources\u003cbr\u003e◆ The maximum output signal amplitude is 28Vpp (±14V)\u003cbr\u003e◆ Magnification X2 and X4 are optional\u003cbr\u003e◆ ≥500V \/ us slew rate\u003cbr\u003e◆ Single DC15V power supply\u003cbr\u003e◆ Input impedance: 10KΩ\u003cbr\u003e◆ Exquisite aluminum alloy shell for strong heat dissipation, stable and reliable performance \u003cbr\u003e◆ Amplifiable signal: function signal and arbitrary waveform signal\u003cbr\u003e◆ Small size make it easy to carry. Powered by single power supply. Convenient for outdoor use.  \u003cbr\u003e◆ Compatible with all function and arbitrary waveform signal generators \u003cbr\u003e\u003cbr\u003e\u003cimg style=\"width: 656px;\" src=\"https:\/\/www.byimg.com\/catalog\/201912\/63612\/63612-01.JPG\"\u003e\u003cbr\u003e\u003cimg style=\"width: 655px;\" src=\"https:\/\/www.byimg.com\/catalog\/201912\/63612\/63612-02.JPG\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e- Electronic test and design\u003cbr\u003e- Sensor simulation and test\u003cbr\u003e- Power devices and circuit drivers\u003cbr\u003e- Ultrasonic transducer drive\u003cbr\u003e- IF driver\u003cbr\u003e- Medical beauty equipment driver\u003cbr\u003e- Screening and testing of piezoelectric components\u003cbr\u003e- Electronic training room experimental bench\u003cbr\u003e- Education and training\u003cbr\u003e- Signal amplification of wireless remote sensing and detection equipment\u003cbr\u003e\u003cb\u003e\u003cbr\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Power Amplifier \u003cbr\u003e- 1 x Power Supply \u003cbr\u003e- 1 x BNC-BNC Cable \u003cbr\u003e- 1 x Q9 Clip Cable \u003cbr\u003e- 1 x User Manual (PDF)\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824716951601,"sku":"63612","price":86.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076870717489_watermarked_0.jpg_0.png?v=1768017200"},{"product_id":"function-generator-amplifier-arbitrary-waveform-signal-amplifier-power-amp-fpa301-20w10mhz","title":"Function Generator Amplifier Arbitrary Waveform Signal Amplifier Power Amp FPA301-20W10MHz","description":"\u003cp\u003e\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003eFPA301 series DC power amplifier uses imported integrated devices, full-band amplification: sine wave, square wave, pulse wave, sawtooth wave, reverse sawtooth wave, triangle wave, electrocardiogram wave, saddle wave and noise wave, etc. The signal amplitude is 28Vpp (plus or minus 14V).\u003cbr\u003e\u003cb\u003e\u003cbr\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e◆ Low distortion and high precision signal amplification, compatible with all DDS signal sources\u003cbr\u003e◆ The maximum output signal amplitude is 28Vpp (±14V)\u003cbr\u003e◆ Magnification X2 and X4 are optional\u003cbr\u003e◆ ≥500V \/ us slew rate\u003cbr\u003e◆ Single DC15V power supply\u003cbr\u003e◆ Input impedance: 10KΩ\u003cbr\u003e◆ Exquisite aluminum alloy shell for strong heat dissipation, stable and reliable performance \u003cbr\u003e◆ Amplifiable signal: function signal and arbitrary waveform signal\u003cbr\u003e◆ Small size make it easy to carry. Powered by single power supply. Convenient for outdoor use.  \u003cbr\u003e◆ Compatible with all function and arbitrary waveform signal generators \u003cbr\u003e\u003cbr\u003e\u003cimg style=\"width: 656px;\" src=\"https:\/\/www.byimg.com\/catalog\/201912\/63612\/63612-01.JPG\"\u003e\u003cbr\u003e\u003cimg style=\"width: 655px;\" src=\"https:\/\/www.byimg.com\/catalog\/201912\/63612\/63612-02.JPG\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e- Electronic test and design\u003cbr\u003e- Sensor simulation and test\u003cbr\u003e- Power devices and circuit drivers\u003cbr\u003e- Ultrasonic transducer drive\u003cbr\u003e- IF driver\u003cbr\u003e- Medical beauty equipment driver\u003cbr\u003e- Screening and testing of piezoelectric components\u003cbr\u003e- Electronic training room experimental bench\u003cbr\u003e- Education and training\u003cbr\u003e- Signal amplification of wireless remote sensing and detection equipment\u003cbr\u003e\u003cb\u003e\u003cbr\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Power Amplifier \u003cbr\u003e- 1 x Power Supply \u003cbr\u003e- 1 x BNC-BNC Cable \u003cbr\u003e- 1 x Q9 Clip Cable \u003cbr\u003e- 1 x User Manual (PDF)\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824717017137,"sku":"63613","price":100.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076870750257_watermarked_0.jpg_0.png?v=1768017180"},{"product_id":"ph02-hifi-bp-p-electrodeless-capacitance-headphone-amplifier-board-opa1612-ztx450-ztx550-for-class-a-superlinear-solo","title":"PH02 HIFI BP-P Electrodeless Capacitance Headphone Amplifier Board OPA1612 ZTX450 ZTX550 For Class A Superlinear SOLO","description":"\u003cp\u003e\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003eThis product is a finished board, which has been debugged by technicians and can be used in general.\u003cbr\u003e1. The output state is adjusted to class a state, which greatly reduces the output distortion and increases the driving force, making the sound fuller and more natural.\u003cbr\u003e2. In the new version, the electronic filter circuit composed of Darlington is used. The output internal resistance is very low and the loss is small, so the dynamic performance is improved.\u003cbr\u003e3. Using the British ZTX series output pair, the maximum output current can reach 1a. Using the ultra-low distortion opa1612. The sound quality is far better than the original ad823, and the analysis power is improved a lot.\u003cbr\u003e4. The coupling adopts the BP-P series electrodeless capacitor with Nichicon high spot, and the resistance is the German high-precision Vishay mma0204 round crystal chip resistor.\u003cbr\u003e\u003cb\u003e\u003cbr\u003eSpecification\u003c\/b\u003e\u003cbr\u003e- Working voltage: dc12-dc24v\u003cbr\u003e- Interface specification: 5.5-2.5\u003cbr\u003e- Output connector: 3.5 stereo headphone socket\u003cbr\u003e- PCB size: 103 * 100mm\u003cbr\u003e- Output tube:ZTX 450 550\u003cbr\u003e    \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage include\u003c\/b\u003e\u003cbr\u003eOPA1612 Version:\u003cbr\u003e1*Amplifier Board or 1*Amplifier Board with case\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824717574193,"sku":"63620","price":37.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076871110705_watermarked_0.jpg_0.png?v=1768017058"},{"product_id":"fu29-tube-power-amplifier-a300-6n2-tube-amp-class-a-amp-10w-x-2-output-with-bluetooth-5-0","title":"FU29 Tube Power Amplifier A300 6N2 Tube Amp Class A Amp 10W x 2 Output with Bluetooth 5.0","description":"\u003cp\u003e\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003e- FU29 tube amplifier with 10W Single-ended pure Class A power output. \u003cbr\u003e- This amplifier with \u003cspan class=\"tlid-translation translation\" lang=\"en\"\u003e\u003cspan title=\"\" class=\"\"\u003estable low-frequency driving ability  which enable  the sound output soft ,smooth, warm and delicate\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecification:\u003c\/b\u003e\u003cbr\u003e- FU29 Voltage :6.3V\u003cbr\u003e- Current:2.25A\u003cbr\u003e- \u003cspan class=\"tlid-translation translation\" lang=\"en\"\u003e\u003cspan title=\"\" class=\"\"\u003eScreen voltage of 600V\u003cbr\u003e- curtain grid voltage :200V\u003cbr\u003e- zero letter screen current : 40mA\u003cbr\u003e- \u003c\/span\u003e\u003cspan title=\"\" class=\"\"\u003eGrid bias -18V\u003cbr\u003e- optimal load impedance from screen to screen grid :13750Ω\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e- Size:194 x159 x311mm\u003cbr\u003e- Output power:10WX2\u003cbr\u003e- Power cable:220V\u003cbr\u003e- Weight:10kg\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824717869105,"sku":"63626","price":342.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076871372849_watermarked_0.jpg_0.png?v=1768016971"},{"product_id":"fu29-tube-power-amplifier-a200-6n2-tube-amp-class-a-amp-40w-x-2-output-with-bluetooth-5-0","title":"FU29 Tube Power Amplifier A200 6N2 Tube Amp Class A Amp 40W x 2 Output with Bluetooth 5.0","description":"\u003cp\u003e\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003e- FU29 tube amplifier with 40W Single-ended pure Class A power output. \u003cbr\u003e- This amplifier with \u003cspan class=\"tlid-translation translation\" lang=\"en\"\u003e\u003cspan title=\"\" class=\"\"\u003estable low-frequency driving ability  which enable  the sound output soft ,smooth, warm and delicate\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecification:\u003c\/b\u003e\u003cbr\u003e- FU29 Voltage :6.3V\u003cbr\u003e- Current:2.25A\u003cbr\u003e- \u003cspan class=\"tlid-translation translation\" lang=\"en\"\u003e\u003cspan title=\"\" class=\"\"\u003eScreen voltage of 600V\u003cbr\u003e- curtain grid voltage :200V\u003cbr\u003e- zero letter screen current : 40mA\u003cbr\u003e- \u003c\/span\u003e\u003cspan title=\"\" class=\"\"\u003eGrid bias -18V\u003cbr\u003e- optimal load impedance from screen to screen grid :13750Ω\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e- Size:194 x159 x311mm\u003cbr\u003e- Output power:40WX2\u003cbr\u003e- Power cable:220V\u003cbr\u003e- Weight:12.5kg\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824718032945,"sku":"63627","price":359.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076871471153_watermarked_0.jpg_0.png?v=1768016957"},{"product_id":"musical-paradise-mp-d1-mk3-es9028q2m-tube-dac-bluetooth-headphone-amplifier-decoder-finished-support-for-aptx-hd","title":"Musical Paradise MP-D1 MK3 ES9028Q2M Tube DAC Bluetooth Headphone Amplifier Decoder Finished Support For APTX HD","description":"\u003cp\u003e\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003eMP-D1 tube decoder uses asynchronous USB input chip. This newly designed third-generation MP-D1 decoder has comprehensively improved sound quality and functions. And it enables the latest Bluetooth high-definition APT-X HD wireless audio decoding function. You can wirelessly enjoy the sound equivalent to that of high-end CD players, just install some music players in your mobile phones. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eTechnical Features:\u003c\/b\u003e\u003cbr\u003e- Dual ring transformers, one for digital circuit and one for analog circuit.\u003cbr\u003e- American low phase noise asynchronous high frequency clock is adopted to further reduce the time base error.\u003cbr\u003e- Use multiple low ripple output pure linear regulated power supply chips.\u003cbr\u003e- The USB module uses the latest U208, which is twice as fast as the previous generation U8.\u003cbr\u003e- Bluetooth 5.0 APT-X HD Bluetooth wireless audio transmission technology.\u003cbr\u003e- USB module and Bluetooth module I2S output with digital isolation circuit to isolate the digital interference introduced by the digital end.\u003cbr\u003e- It adopts 32-bit MCU controller and provides upgrading interface.\u003cbr\u003e- High-quality headphone amp and pre-amp functions. Pre-amp function is off when you connect your headphones to the amplifier. \u003cbr\u003e- Plug-in DAC chip module equipped with ES9028Q2M DAC module.\u003cbr\u003e- USB input supports up to PCM384Khz, DSD128 (Windows), DSD512 (For Linux digital broadcast).\u003cbr\u003e- Tubes with zero negative feedback analog output circuit.\u003cbr\u003e- Independent RCA pre-amp output and amp output interface.\u003cbr\u003e- Use genuine enthusiast-grade resistance-capacitance components, American resistor, coupling capacitor, electrolysis and the like. \u003cbr\u003e- High-quality Taiwan gold-plated terminals, Swiss XLR terminals and power filter sockets.\u003cbr\u003e- Aluminum alloy chassis with aluminum alloy shock absorb feet. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eSound Characteristics: \u003c\/b\u003e\u003cbr\u003e- Sound field is big, wide and deep. \u003cbr\u003e- Transparent and airy sound. \u003cbr\u003e- Delicate sound. \u003cbr\u003e- Zero burr, silky smooth. \u003cbr\u003e- High resolution, revealing super fine sonic details.\u003cbr\u003e- High dynamics and enough low frequency, without compressing. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eTechnical Parameters:\u003c\/b\u003e\u003cbr\u003e- Frequency Response: DC to 50khz\u003cbr\u003e- DR\/SN: 127 dB\u003cbr\u003e- Output Level: 2V single-ended RCA fixed output, maximum 8V single-ended RCA pre-amp output.\u003cbr\u003e- Input Interfaces: Bluetooth, coaxial and USB. USB supports up to PCM384Khz, DSD128 (Windows), DSD512 (For Linux digital broadcast, Raspberry Pi, etc.). Bluetooth supports for APT-X HD 24Bit 96Khz.\u003cbr\u003e- Tubes: Fits 6H6 (Standard), 6n11, 6H30, E88CC, 6922 and 6DJ8\u003cbr\u003e \u003cbr\u003e\u003cb\u003eDownload Driver:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/pan.baidu.com\/s\/1jHhjDaQ\"\u003ehttps:\/\/pan.baidu.com\/s\/1jHhjDaQ\u003c\/a\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cbr\u003e\u003cb\u003eNote: \u003cbr\u003e- For the latest fall version of Win 10, no driver installation is required. \u003cbr\u003e- It is finished and ready to use. \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Tube DAC Headphone Amplifier with Antenna \u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824719409201,"sku":"63644","price":553.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076872192049_watermarked_0.jpg_0.png?v=1768016706"},{"product_id":"mini-hifi-power-amplifier-bluetooth-5-0-dac-with-pcm5102a-decoding-chip-2019-version","title":"Mini HiFi Power Amplifier Bluetooth 5.0 DAC with PCM5102A Decoding Chip 2019 Version","description":"\u003cp\u003e\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003eThe 2019 version has improved its components. Advanced devices such as metal film capacitors, coupled with Bluetooth receiver solution QCC3003, and the output is decoded by PCM5102A, it stands out with excellent sound quality which outperforms that of wired connection. It features ultra low noise. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- 2pcs TPA3116 are used for subwoofer and amplification for left and right channels. Up to 1.5MHz modulation frequency, high power output distortion is less than 0.1%.\u003cbr\u003e- Bluetooth 5.0 enables high-speed transmission and low latency, consuming less power.\u003cbr\u003e- Large capacity filters \u0026amp; red ring inductor output.\u003cbr\u003e- Independent adjustment of subwoofer frequency.\u003cbr\u003e- Independent adjustment of left and right channels. \u003cbr\u003e- Connection to your mobile phones, PC, tablet PC, with lossless transmission and CD-level sound quality. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Frequency Range: 15Hz-30KHz (±3dB)\u003cbr\u003e- SNR: 92dB\u003cbr\u003e- Rated Power: Left \u0026amp; Right Channel: 50W*2. Subwoofer: 100W*1 (DC24V 4Ω)\u003cbr\u003e- Impedance Range: 4-8Ω\u003cbr\u003e- Harmonic Distortion: \u0026lt;0.08% 1KHz 1W\u003cbr\u003e- Input Terminal: RCA Connector \u003cbr\u003e- Compatible Voltage: AC220V 50-60Hz \u003cbr\u003e- N.W.: Around 0.4kg \u003cbr\u003e\u003cbr\u003e\u003cb\u003eHow to Connect Via Bluetooth?\u003c\/b\u003e\u003cbr\u003e- Step 1: Power on the module and the external connection indicator flashes\u003cbr\u003e- Step 2: Enter into system settings of your mobile phone \u003cbr\u003e- Step 3: Turn Bluetooth on\u003cbr\u003e- Step 4: Search for available device and click Bluetooth Audio to link \u003cbr\u003e- Step 5: Successfully connect to the Bluetooth module \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Power Amplifier DAC \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote: \u003cbr\u003e- The power switch on the board is the standby switch. When the switch is turned off, the amp is in a low-power standby state. To turn off the power completely or not use it for a long time, you can unplug the DC plug of the machine.\u003cbr\u003e- Power supply is not included in the package. If it is needed, please contact us for price and details. Voltage of your power supply can be 12-24V. Laptops power supply 12-25V can be applied to this device. Or 12-24V car power supply can be used together with our item.\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824725274673,"sku":"63670","price":43.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076874158129_watermarked_0.jpg_0.png?v=1768016273"},{"product_id":"tpa3255-bluetooth-5-0-amplifier-300w-2-1-digital-amplifier-for-aptx-protection-of-loudspeakers","title":"TPA3255 Bluetooth 5.0 Amplifier 300W 2.1 Digital Amplifier For APTX (Protection of Loudspeakers)","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- 2.1-Channel HiFi amplifier \u003cbr\u003e- TPA3255 with max. effective power 300W \u003cbr\u003e- HiFi audio power amplifier creates cinematic sound effects\u003cbr\u003e- 75W*2 medium high frequency output + 150W subwoofer output \u003cbr\u003e- Fit most passive stereo speakers in various sizes and impedance standard \u003cbr\u003e- QCC3008 chip supports A2DP, AVRCP, HFP, TWS, AAC, I2S, APTX, APTX-LL and the like. 16M SPI FLASH as memory chip. \u003cbr\u003e- Lossless Bluetooth 5.0 chip enables high-speed transmission, stable signal and low latency, consuming less power. \u003cbr\u003e- TPA3255 class D digital audio amplifier adopted. BTL power outputs designed with 75W*2 channels + 150 subwoofer output. For continuous operating, THD is less than 0.03%. \u003cbr\u003e \u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Power 300W: Stereo 150W (75W*2) + Bass 150W\u003cbr\u003e- Power Supply: DC24V-48V (Outer Diameter 5.5mm \u0026amp; Inner Diameter 2.5mm)\u003cbr\u003e- Impedance: 4-8Ω\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Digital Amplifier with Antenna \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote: Items with black panel or silver panel will be delivered at random. Thank you for your understanding! \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201912\/63676\/63676-01.jpg\"\u003e\u003cbr\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201912\/63676\/63676-02.jpg\"\u003e\u003cbr\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201912\/63676\/63676-03.jpg\"\u003e\u003cbr\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201912\/63676\/63676-04.jpg\"\u003e\u003cbr\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201912\/63676\/63676-05.jpg\"\u003e\u003cbr\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201912\/63676\/63676-06.jpg\"\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824725504049,"sku":"63676","price":79.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076874387505_watermarked_0.jpg_0.png?v=1768016200"},{"product_id":"su9-bluetooth-5-0-dac-decoder-dual-es9038-dsd512-dac-headphone-amplifier-full-functions-for-ldac","title":"SU9 Bluetooth 5.0 DAC Decoder Dual ES9038 DSD512 DAC Headphone Amplifier Full Functions For LDAC","description":"\u003cp\u003e\u003cb\u003eAttention:\u003c\/b\u003e\u003cbr\u003eThis product uses two ES9038Q2M chips, which are different from the general single-chip ES9038Q2M. Its analysis power, density, and separation have been improved a lot. It is more expensive. Bluetooth has also been upgraded to the newest Bluetooth solution QCC5125, which is more accurate than CSR8675. Support for APTX-HD and LDAC.\u003cbr\u003e\u003cbr\u003eWith digital decoding for XMOS or for direct engraving Italian Amanero, directly hard decode DSD64-DSD512!\u003cbr\u003e\u003cb\u003e\u003cbr\u003eAdvantages:\u003c\/b\u003e\u003cbr\u003e- Aluminum shell\u003cbr\u003e- Lossless audio format\u003cbr\u003e- 192K 24BIT\u003cbr\u003e- LINE OUT\u003cbr\u003e- Compatible with PC multiple systems\u003cbr\u003e- Optical fiber input\u003cbr\u003e- Coaxial input\u003cbr\u003e- Bluetooth 5.0\u003cbr\u003e- High-end hard decoding chip\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- Using a newer generation of Bluetooth 5.0 chip QCC5125 than CSR8675, support for LDAC, APTX-HD, apt x-adaptive (If you need a password to connect to Bluetooth, input 0123)\u003cbr\u003e- Supports 192K 24BIT and DSD audio formats. Compatible with Bluetooth 4.0-5.0 input\u003cbr\u003e- Support coaxial, optical, USB, Bluetooth input\u003cbr\u003e- OLED low-power high-definition display, support remote control operation\u003cbr\u003e- Dual ES9038Q2M boast greatly improved details and resolution than that of single-chip ES9038Q2M\u003cbr\u003e- Built-in two ES9038Q2M decoder chips, with digital interface of daughter card\u003cbr\u003e- High-speed and low-noise positive and negative power supply boost circuit, so that the op amp has enough voltage to make its dynamics and extension better\u003cbr\u003e- ES9038Q2M is a high-performance 32-bit, stereo audio DIA converter, 32-bit super-current DAC architecture and time-domain jitter, ES9038Q2M provides a signal-to-noise ratio of up to 129dB, and the distortion rate is -120dB. A performance that can meet the most demanding audio enthusiasts, while supporting DSD512 transmission\u003cbr\u003e- TL072 op amp with 4 FET inputs responsible for I\/V conversion and LPF low-pass output. The level and details are better than those of NE5532\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Input port: coaxial, optical fiber, USB, Bluetooth\u003cbr\u003e- Power adapter: DC 12V (1-2A)\u003cbr\u003e- PCB size: 109 x 163 x 62mm\u003cbr\u003e- Output interface: RCA output port x 1, 3.5 stereo headphone jack x 1\u003cbr\u003e- Machine size: 130*42*108mm (without sizes of terminals or knobs) \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Bluetooth DAC with Antenna  \u003cbr\u003e- 1 x Power Adapter 12V 2A\u003cbr\u003e- 1 x Remote Control\u003cbr\u003e- 1 x USB Cable (only for USB version)\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote:\u003cbr\u003e- It is assembled and with an USB port.\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDrive: \u003c\/b\u003e\u003cbr\u003eLink for \u003ca href=\"https:\/\/amanero.com\/drivers.htm\"\u003ehttps:\/\/amanero.com\/drivers.htm\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eUser Manual: \u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/pan.baidu.com\/s\/1qYC_I1ta5UWAkeVieTN99Q\"\u003ehttps:\/\/pan.baidu.com\/s\/1qYC_I1ta5UWAkeVieTN99Q\u003c\/a\u003e\u003cbr\u003ePassword: awuq\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDriver Installation and Setup Tutorial for FOOBAR: \u003c\/b\u003e\u003cbr\u003eLink: \u003ca href=\"https:\/\/pan.baidu.com\/s\/1uUn-AAqjN9kWxfEEx-_zzw\"\u003ehttps:\/\/pan.baidu.com\/s\/1uUn-AAqjN9kWxfEEx-_zzw\u003c\/a\u003e\u003cbr\u003ePassword: 2333\u003cbr\u003e\u003cbr\u003e\u003cimg style=\"width: 800px;\" src=\"https:\/\/www.byimg.com\/catalog\/63679\/63679-01.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824725667889,"sku":"63679","price":134.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076874518577_watermarked_0.jpg_0.png?v=1768016153"},{"product_id":"hifi-portable-headphone-amplifier-dac-earbuds-dac-amp-384khz-32bit-for-android-iphone-pc","title":"HiFi Portable Headphone Amplifier DAC Earbuds DAC Amp 384KHz\/32Bit For Android iPhone PC","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- Easy Application: Just plug to play. Charging is not needed. \u003cbr\u003e- Compact Size: Made of aluminum alloy with CNC process, the integrated body is sturdy to last long. It weighs 12.5g. \u003cbr\u003e- Excellent Compatibility: Can be used to push headphones and earbuds. \u003cbr\u003e- Supported Devices: For tablet PC, desktop PC, Android\/iPhone mobile phones, laptop PC and players. \u003cbr\u003e- Portable DAC Headphone Amp: With dual chips, it can decode 384KHz\/32bit and push earphones with 900Ω, supporting DSD64\/DSD128\/DSD256 (Support 256DSD for mobile phones). \u003cbr\u003e- Supported Musical APP: Fit for your devices' own music APP, Netease Cloud Music, QQ Music, HiBy Music, Onkyo Player, Xiami Music, Kuwo Music, poweramp and others. Enjoy high-quality music freely. \u003cbr\u003e- 4-Color LED Indicator: Blue Light: 44.1-176.4KHz; Green Light: 176.4-352.8KHz; Red Light: 352.8-384KHz; Colorful Light: DSD64\/DSD128\/DSD256.\u003cbr\u003e- USB Receiver Chip: Outstanding performance, consuming less power and generate less heat.  \u003cbr\u003e- Highly Integrated Decoding Chip: 7-layer PCB with over 100 resistor capacitor chips.  \u003cbr\u003e\u003cbr\u003e\u003cb\u003eParameters:\u003c\/b\u003e\u003cbr\u003e- Item Name: Portable Headphone Amp DAC \u003cbr\u003e- Functions: Strengthen Mobile Phone Driving Force, Improve Sound Quality and Reduce Background Noise \u003cbr\u003e- DAC: ESS9018Q2C\/ SA9137\u003cbr\u003e- Operational Amplifier: ESS9018Q2C\/ SA9137 Dual Chip Strong Operational Amplifier \u003cbr\u003e- Output Power: -121dB; DNR: -115dB; THD+N: 2 Vrms into; -100dB THD+N 49mW  \u003cbr\u003e- Input Interface: Type-C\u003cbr\u003e- Output Interface: 3.5mm \u003cbr\u003e- Distortion Rate: 0.0003% \u003cbr\u003e- Frequency Response: 20-50,000\u003cbr\u003e- PCM Sampling Rate: PCM384KHz 32Bit \u003cbr\u003e- DSD Standard: 64DSD\/128DSD\/256DSD\u003cbr\u003e- Net Weight: 12.5g \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Headphone Amplifier DAC \u003cbr\u003e- 1 x Cable For Type-C to Type-C (For Android Devices\/Players)\u003cbr\u003e- 1 x Cable For Type-C to Lightning (For iPhone Devices)\u003cbr\u003e- 1 x Type-C to USB (For PC Devices)\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote: The cables are made from 8-strand manual braided wires with sliver plating single crystal copper.  \u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824734023729,"sku":"63697","price":80.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076876353585_watermarked_0.jpg_0.png?v=1768015808"},{"product_id":"opa541-audio-power-amplifier-module-board-high-voltage-high-current-power-amp-module-5a","title":"OPA541 Audio Power Amplifier Module Board High-Voltage High-Current Power Amp Module 5A","description":"\u003cp\u003e\u003cb\u003eProduct Description:\u003c\/b\u003e\u003cbr\u003eOPA541 module is a high-voltage high-current power amplifier that can continuously output currents up to 5A. It is suitable for motor drive, speaker drive, transformer drive and audio amplifier. It can also amplify triangle wave, sine wave and square wave signals.\u003cbr\u003e\u003cb\u003e\u003cbr\u003eProduct Parameters:\u003c\/b\u003e\u003cbr\u003e- Item Name: OPA541 High-Voltage High-Current Power Amplifier \u003cbr\u003e- Size: 96 x 64 x 41mm (L*W*H)\u003cbr\u003e- Supply Voltage: ±10V to ±40V \u003cbr\u003e\u003cbr\u003e\u003cb\u003eModule Chip:\u003c\/b\u003e\u003cbr\u003eOPA541 chip is a kind of power operational amplifier which can operate from power source to ±40V, and provides continuous output current up to 5A. The internal current limiting circuit can be programmed by a single external resistor to protect the amplifier and load from failure conditions.\u003cbr\u003e\u003cbr\u003eThe OPA541 device uses a proprietary bipolar transistor process. For current hybrid amplifiers, applications that require two current limiting resistors do not need to be modified.\u003cbr\u003e\u003cbr\u003eOPA541 package is an 11-pin power plastic package or an industry standard 8-pin TO-3 hermetic package. The power plastic package has a copper lead frame to maximize heat transfer.\u003cbr\u003e\u003cbr\u003eThe TO-3 package is isolated from the circuit, allowing it to be mounted directly to a heat sink without special insulators.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eChip Features:\u003c\/b\u003e\u003cbr\u003e- The highest power supply ±40V\u003cbr\u003e- Output current peak 10A\u003cbr\u003e- Programmable current limit \u003cbr\u003e- Industrial standard pin output\u003cbr\u003e- FET input\u003cbr\u003e- TO-3 cost-effective power plastic packaging \u003cbr\u003e          \u003cbr\u003e\u003cb\u003eChip Applications:\u003c\/b\u003e\u003cbr\u003e- Motor Driving \u003cbr\u003e- Servo Amplifier \u003cbr\u003e- Synchronizer Excitation \u003cbr\u003e- Audio Amplifier \u003cbr\u003e- Programmable Power Supply\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Audio Power Amplifier Board \u003cbr\u003e\u003cimg style=\"width: 750px;\" src=\"https:\/\/www.byimg.com\/catalog\/201912\/63722\/63722-01.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer","offers":[{"title":"Default Title","offer_id":40824736546865,"sku":"63722","price":33.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076877336625_watermarked_0.jpg_0.png?v=1768015392"},{"product_id":"musical-paradise-amp-mp-402-mk2-vacuum-tube-power-amplifier-fu25-tube-amp-output-70wx2","title":"Musical Paradise Amp MP-402 MK2 Vacuum Tube Power Amplifier FU25 Tube Amp Output 70Wx2","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- The sound is transparent and delicate, the details are strong, and the voice is sweet\u003cbr\u003e- Precision CNC machined aluminum alloy panels, knobs and feet \u003cbr\u003e- With plug-in mesh cover to protect children from touching the tubes\u003cbr\u003e- Quality Imported Components: Premium volume potentiometers, military-grade resistors, Swedish, Japanese, Dutch capacitors\u003cbr\u003e- Zero negative feedback, super linear Class AB push-pull circuit, providing 70W true RMS continuous output power per channel\u003cbr\u003e- 2pcs high-quality imported EI type iron core output transformers, and one high-quality imported low-temperature rise power transformer\u003cbr\u003e- Harmonic distortion \u0026lt;1% (1Khz), output power 70W x 2, SNR 88db, output impedance 4Ω-8Ω\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Preamplifier Tubes: 6SN7 x 2\u003cbr\u003e- Driving Grade Tubes: 6N7 x 2\u003cbr\u003e- Output Power Tubes: FU25 x 8\u003cbr\u003e- Weight: 29kg \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Set of Tube Amplifier\u003cbr\u003e\u003c\/p\u003e","brand":"Musical Paradise","offers":[{"title":"Default Title","offer_id":40824737693745,"sku":"63735","price":1317.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076877893681_watermarked_0.jpg_0.png?v=1768015189"},{"product_id":"musical-paradise-mp-401-mk3-vacuum-tube-power-amplifier-output-25wx2-el34-tubes-version","title":"Musical Paradise MP-401 MK3 Vacuum Tube Power Amplifier Output 25Wx2 (EL34 Tubes Version)","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- Transparent and delicate sound, powerful resolution capacity, and sweet voice \u003cbr\u003e- Precision CNC machined aluminum alloy panels, knobs and feet \u003cbr\u003e- With plug-in mesh cover to protect children from touching the tubes\u003cbr\u003e- Quality Imported Components: Premium volume potentiometers, military-grade resistors, Swedish, Japanese, Dutch capacitors\u003cbr\u003e- Zero negative feedback, super linear Class A push-pull circuit, providing 25W true RMS 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Title","offer_id":40824737890353,"sku":"63736","price":988.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7076877991985_watermarked_0.jpg_0.png?v=1768015174"},{"product_id":"musical-paradise-mp-401-mk3-vacuum-tube-power-amplifier-output-25wx2-kt88-tubes-version","title":"Musical Paradise MP-401 MK3 Vacuum Tube Power Amplifier Output 25Wx2 (KT88 Tubes Version)","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- Transparent and delicate sound, powerful resolution capacity, and sweet voice \u003cbr\u003e- Precision CNC machined aluminum alloy panels, knobs and feet \u003cbr\u003e- With plug-in mesh cover to protect children from touching the tubes\u003cbr\u003e- Quality Imported Components: Premium volume potentiometers, military-grade resistors, Swedish, Japanese, Dutch capacitors\u003cbr\u003e- Zero negative feedback, super linear Class A push-pull circuit, providing 25W true RMS continuous output power per channel\u003cbr\u003e- 2pcs high-quality imported EI type iron core output transformers, and one high-quality imported low-temperature rise power transformer\u003cbr\u003e- Harmonic distortion \u0026lt;1% (1Khz), output power 25W x 2, SNR 88db, output impedance 4Ω-8Ω\u003cbr\u003e\u003cb\u003e\u003cbr\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Preamplifier Tubes: 6SN7 x 2\u003cbr\u003e- Driving Grade Tubes: 6N7 x 2\u003cbr\u003e- Output Power Tubes: \u003cspan style=\"color: #ff0000;\"\u003eKT88 x 4\u003c\/span\u003e\u003cbr\u003e- Weight: 22kg \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Set of Tube Power Amplifier \u003cbr\u003e\u003c\/p\u003e","brand":"Musical Paradise","offers":[{"title":"Default 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