PCB Size:  120*99mm
Works voltage:    AC15V-0-AC15V   0-AC9V    0-AC9V
Input supprot:   COAX      ( USB input will need add one USB sub card then can use.)


Note: this list just for one Bare PCB. not include any other parts.  

The board has lots SMD ICs need to solder.  not recommend Novice buy it.

PCB are not accept returned once sodered.


Solution: DIR9001+PCM2706+The core adopts WM8740 parallel MONO DAC. WM8740 parallel MONO decoding

Wolfson WM8740 is a highly acclaimed DAC Chip with smooth and natural full frequency range, excellent vocal details, and is used by many famous foreign players, such as the British Rega Apollo CD player and the Cambridge Audio Cambridge Azur 650 series

The indicators are quite outstanding:

120dB SNR ('A'weighted, mono @ 48kHz)

117dB SNR ('A'weighted, steel @ 48kHz)

104dB THD ('A'weighted @ 48kHz)

Sampling frequency: 8kHz -192kHz

Input data word: 16 to 24 bit

Selectable digital low pass filter

Optional interface to industry standard external filters

Hardware or 3-wire SPI control

Fully dfferential voltage outputs


The coaxial digital receiver adopts Jitter index, which can reach 50pS of DIR9001, while Cirrus Logic's CS8416 can only reach 200pS

USB reception processing adopts a PCM2706.

The output is use Single opamp, you can try NE5534, OPA604, AD797, OPA627, and other interchangeable flavors.