HR PCM/DOP SPDIF board for OPPO203/103(D)

BD player Mod. 2020. 8. 3. 09:41

This is a concept that replaces the existing OPPO 203 analog audio board. It now functions like a Vanity HD board that has been discontinued.

  It is different to support only 2-channel stereo. The price has also been lowered from 899$ to about 370$.

  In order to do a DOP (DSD over PCM) function, there was no other choice execpt using a USB port on notebook computer .

  But the notebook computer had a lot of EMI/EMC noise, so it has a lot of problems using it as a source device.

  Mounting this HR PCM/DOP SPDIF board on OPPO203 makes it very easy to use and delivers pure music data.


Currently it is only developed for OPPO 203, but it will soon be developed for using in Oppo 103 (D) as well.



  1. Stereo 2-channel only

  2. 192KHz/24bit PCM and DSD128

( The board itself can handle 384Khz/36bit PCM, DSD256, but OPPO 203 firmware limit its functionality )


3. Using proprietary high-precision clock.


4. Using an optical coupler to separate the main board ground to prevent noise inflow


5. Gold-plated unbalanced terminals (AEB/EBU type balanced 3 pin terminals can also be mounted)

6. Use a separate independent power supply from the linear power supply (existing analog DAC power supply can also be used)


7. High-precision matching transformer at the output stage