A39 ES9039 Decoder Bluetooth5.4 LDAC HiFi DAC TPA6120A2 High Performance Headphone Amplifier without Power Adapter

A39 ES9039 Decoder Bluetooth5.4 LDAC HiFi DAC TPA6120A2 High Performance Headphone Amplifier without Power Adapter

Description:
- The internal headphone amplifier and operational amplifier power supply circuit of A39 is a newly designed ±12V high voltage circuit, coupled with a large capacity filtering capacitor, ensuring strong and stable current output with lower ripple. The headphone amplifier uses the TPA6120A2 high-performance headphone amplifier chip, with an output current of up to 700mA, very low distortion, huge thrust, and no pressure to deal with high impedance headphones. The headphone stand supports 3.5 and 4.4 balanced plugs and is compatible with headphones currently available on the market.

- The Bluetooth receiver chip uses QCC3084, supports Bluetooth 5.4, LDAC, supports USB input, and has a maximum bit rate of 24BIT96K. Bluetooth achieves lossless transmission, and when connected to Bluetooth, it becomes an excellent audio source, convenient and fast, with sound quality comparable to traditional high-end CD players.

- The A39 adopts a brand new integrated design style, with the shell and panel integrated into one, and not a single screw visible on the front, giving it a high-end and upscale appearance.

Using Instruction:
- A39 uses DC12V single voltage power supply, with a power socket specification of 5.5*2.1, positive inside and negative outside. For better sound quality, you can choose an advanced linear power supply.
- Lightly press the knob of A39 to switch inputs, and twist it to adjust the volume. The letter B on the panel represents Bluetooth/USB input, O represents fiber optic input, and C represents coaxial input. The machine has a gain of 4.7 times and is compatible with earplugs and large headphones.
- The Bluetooth name is "YJHIFI". Search for the connection on your phone and switch to Bluetooth input to play.
- The USB input goes through the Bluetooth module. To use the USB input, first switch to Bluetooth input mode, then cancel the Bluetooth pairing, and then insert the USB cable. The USB cable must use an OTG cable that can transfer data. If it is a single charging cable, USB cannot recognize it.
- The RCA output is decoded and directly output, without adjusting the volume through a potentiometer, and can be used in conjunction with an amplifier or preamplifier.

Specification:
- Model: A39
- Input: coaxial, optical, Bluetooth, USB
- Output: RCA, 3.5mm, 4.4mm
- Working voltage: DC12V
- Standby power consumption: 0.6W
- Bluetooth chip: QCC3084
- Bluetooth support: SBC/AAC/APTX/APTX-LL/APTX HD/LDAC, 16 - 24bit, 44.1 - 96kHz
- Optical/Coaxial support: 24bit/96k
- USB support: 24bit/96k
- Headphone amplifier chip: TPA6120A2
- Headphone amplifier output power: 600ohms/80mW, 300ohms/160mW
- THD+N: <0.02%
- SNR: 110dB
- Frequency response: 20Hz - 20kHz
- Product size: 90 x 38 x 138mm
- Net weight: 300g

Package Included:
- 1 x Decoder