{"product_id":"phoenix-dual-ak4499ex-hifi-decoder-class-a-headphone-amplifier-tcxo-pll-femtosecond-tuning-usbxmos216-dac","title":"Phoenix Dual AK4499EX HiFi Decoder Class A Headphone Amplifier TCXO PLL Femtosecond Tuning USBXMOS216 DAC","description":"\u003cp\u003e\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003e- Phoenix decoder (2*4499) has a unique two-stage clock correction and multi chip single clock synchronization technology.\u003cbr\u003e- All use self-developed Golden Bell TCXO PLL femtosecond tuning. At the same time, the XMOS USB interface has added an ADI-4166 USB high-speed 480M isolation chip.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eHighlights:\u003c\/b\u003e\u003cbr\u003e- The USB input uses XMOS216. For Windows comes with the official driver for Thesycon, supporting source code DSD512 and PCM768K.\u003cbr\u003e- Multi femtosecond crystal oscillator design, with a phase-locked loop circuit used to lock the clock in the core area.\u003cbr\u003e- Digital processing and DAC are powered by a single 33000uf capacitor for the first stage filtering, followed by multi-level digital voltage stabilization. The cascading of digital signals adopts buffer driving to ensure accurate and timely signal transmission.\u003cbr\u003e- The jitter elimination circuit adopts a professional audio IC from the recording studio.\u003cbr\u003e- The DAC analog power supply adopts UV grade LDO, while the analog amplifier and headphone amplifier power supply require larger currents and use independently designed discrete component UV grade circuits.\u003cbr\u003e- Simulate left and right channels at both ends of the circuit board, isolated in the middle, with a separation of 135db.\u003cbr\u003e- Provide S1 balance and S2 sweet mode dynamic selection (remote control), using analog components for tuning.\u003cbr\u003e- Refusing to switch power supply, this machine uses one 50W and three 25W transformers, with a total capacity of 125W and sufficient margin. The sound is loose, natural, and transient fully loaded.\u003cbr\u003e- The matching 4191 and 4499 have a one-to-one correspondence, not a design of one (4191) to two (4499) driving. Two 4499 versions are paired with two 4191 chips, driven one by one to ensure signal waveform integrity.\u003cbr\u003e\u003cb\u003e\u003cbr\u003eSpecification:\u003c\/b\u003e\u003cbr\u003e- Product size: 448 x 398 x 108mm\u003cbr\u003e- Foot height: 17mm\u003cbr\u003e- Net weight: 13kg\u003cbr\u003e- Transcoding capability: CD format can transcode DSD64 and DSD128\u003cbr\u003e- Analog output: 2 sets. Fully balanced XLR and single-ended RCA with one output each.\u003cbr\u003e- Digital input interface: 6; IIS, USB, COAX, AES, OPT, CLOCK\u003cbr\u003e- Decoding capability:\u003cbr\u003e  USB and IIS port bitrate: using XMOS216 chip to receive; PCM44-768K, DSD64-512 (USB supports for ASIO)\u003cbr\u003e  COAX AES port: PCM44-384K, DOP64-128\u003cbr\u003e  OPT fiber port bitrate range: PCM44-96K, DOP64\u003cbr\u003e  *WAV FLAC, DSF, DFF, ISO APE, and other file formats are essentially classified into PCM and DSD, and can be decoded locally.\u003cbr\u003e- External clock interface: BNC interface, 11.2896MHz, adaptive 50 and 75ohms impedance.\u003cbr\u003e- Mobile OTG: for iOS 10 and Android 10 and above systems can be connected to the local USB port through an OTG cable without the need to install drivers. The highest bit rate tested for iOS system cellphone is 192K. For Android can support PCM44-384K using Hiby Player, and DSD is compatible with DOP128.\u003cbr\u003e- High fidelity rate: 99.9999%\u003cbr\u003e- Bottom noise: batch production average 0.000002V, 105dB high sensitivity; power ripple peak value of -135dB at 1K 0dbfs\u003cbr\u003e- Separation degree: 135db at 1K 0dbfs\u003cbr\u003e- Transformer: 125W, 1 x 50W + 3 x 25W square transformer, two digital + two analog\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Decoder\u003cbr\u003e- 1 x Power Cable\u003cbr\u003e- 1 x USB Cable\u003cbr\u003e- 1 x Coaxial Cable\u003cbr\u003e- 1 x Remote Control\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDriver:\u003c\/b\u003e\u003cbr\u003e- For WIN10 and WIN11 require the installation of USB drivers, and we provide genuine driver downloads. Other interfaces for LINUX and MAC systems do not require driver installation.\u003cbr\u003e- Download: https:\/\/pan.baidu.com\/s\/1AcCojq4A7aoyN1wh5EcivQ?pwd=8888 Password: 8888\u003c\/p\u003e","brand":"Phoenix","offers":[{"title":"Default Title","offer_id":41028841340977,"sku":"100510","price":1317.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/1768440008-3.jpg?v=1780350048","url":"https:\/\/www.thanksbuyer.com\/es\/products\/phoenix-dual-ak4499ex-hifi-decoder-class-a-headphone-amplifier-tcxo-pll-femtosecond-tuning-usbxmos216-dac","provider":"Thanksbuyer Online,SDR Radio, Testers and Measurement devices, Astronomy products,  Audio Amplifer and Decoders","version":"1.0","type":"link"}