I2S card for OPPO 103/103D/203

BD player Mod. 2018. 8. 19. 09:31
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PS audio DAC 기기 등과 HDMI 단자 규격을 통해 I2S 신호로 디지털 오디오 신호를 전송하면 가장 순수한 상태의 디지털 신호를 외부로 출력 할 수 있다. 더구나 SACD나 DSD 파일 재생 시에도 디지털 신호를 전송 가능하다. ( 보통의 SPDIF 형식의 디지털 신호로는 전송 불가능)

현재 i2S 신호를 전송하는 규격은 표준이 없어 제 각각 이지만 많은 메이커 들이 PSAudio  규격을 따르고 있다. 이  규격은 HDMI 단자를 물리적으로 이용한다 ( HDMI 전송 규격과는 다르다. )

오포 103(D)와 203 에서 사용 가능하다.


그간 호환성 검증을 위해 베타 테스터 형식으로 보내 드리고 사용 경험을 전해 받고 했는데 이제는 충분히 확신을 들어 본격적인 공개를 하기로 했다.


PS audio 에서는 perfect wave DAC 와 Direct stream DAC에서 정상 동작 확인.


PS audio에서 나온 Direct stream Memory Player는 오포 203을 내장하여 전원부와 외부 인터페이스 부분 및 외형을 바꾼 기기로서 6000 $ 에 판매 되고 있다. 


하지만 오포 203을 개조 하여 리니어 전원부를 달고 클럭을 Femto clock 등으로 개조 하여 I2S card를  장착하면 2000$ 이하의 가격으로 동등 또는 그 이상의 기능을 한다.


Direct stream Memory Player가 비디오 HDMI 출력을 막아 놓았고 또 ROON player 기능을 할 수 없는 데 비하여 오포 203을 개조 하여 사용하면 이 모든 것이 가능하다. 


여기에 사용자의 코멘트를 원문 그래도 옮긴다.  ( 감사하게도 사진과 코멘트를 사용해도 된다는 허락을 해주셨다. )


PS audio digital audio DAC device etc can be recived  I2S signal through the  HDMI terminal .


With this, all  digital audio signal with the purest  state can be output to the outside of OPPO BD player. 


Moreover, digital signals can be transmitted even when playing SACD or DSD files. (Can not be transmitted by a normal SPDIF format )

 

Currently, there are no standards for transmitting i2S signals, but many manufacturers follow the PS Audio standard. This specification uses the HDMI terminal physically (not the HDMI transmission standard).


 price 220$

It is available in Oppo 103 (D) and 203.

You can order from http://www.oppomod.com



In the meantime, in order to verify the compatibility, I sent it in beta tester format and received the experience, and now I am confident that I will make full-fledged publicity.




PS audio confirms normal operation in perfect wave DAC and direct stream DAC.


The direct stream memory player from PS audio is a device that has built-in Oppo 203 mqin board and BD ROM drive and changed the power part, external interface part and the external shape and is sold for 6000 $.




However, if you modify the Oppo 203 and install a linear power supply, upgrade the clock to a femto clock, and install an I2S card, it will perform the same or better at less than 2000 $ price.




All of this is possible eventhough Direct Stream Memory Player has disabled the video HDMI output and can not be used the ROON player function.




I'll move the user's comments here. (Thankfully, you gave me permission to use photos and comments.)

G



------------------------

Hi again Jaehong.

 

Just wanted to give you some feedback on my recent fitting of your i2s board.
It sounds SUPERB!
Thank you for making this board, it’s really made my musical experience so much better with my Directstream Dac.

I have posted a thread on a UK hifi forum saying how wonderful it is, please use my experiences, photographs and any writing I have done to let the world know how good your Oppo mods work is! 😊

The thread is here:


https://theartofsound.net/forum/showthread.php?56087-Hey-guess-what-I%92m-about-to-do-Major-Oppo-mods


Thank you again, your work has improved my music appreciation, and I’ve been an audiophile for 35+ years.

 

Best Regards

Gary


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So,
I’ve lived with the Oppo for a few days after its latest bout of surgery and can comment on the mod.
Top level, best digital Ive heard in my system by quite a ways, perhaps by opening up more of my Dacs potential using the i2s input?

From first switch on it DID sound a bit digital and ‘shiny’ for a few days...oh, thats a bit of a let down.
Left music playing and was all over the place the first few days but with some time on it seems to have smoothed out and opened up. Very detailed and crisp sound but musical and very not ‘digital’. Soundstage is massive!
The Oppo doesn’t decode MQA and cant play DSD over the network only via USB, but hey...who cares, can always play those from the Dacs network card, just switch inputs.

Biggest improvement I think is playing back CDs, they sound quite different from how Ive heard them before.
Easy to forget the hifi stuff and just drift off into the music, love it.
Looking forward to trying SACD as the Oppo will feed the DSD layer to the dac, should be interesting.

Another cool thing the Oppo does is it has a “PureAudio” mode, which switches off the display and all the video playback circutry, kinda like a source direct feature to maximise audio quality.
It works well, and it improves things again, but I do miss the display when playing back CDs though, ah well. 

Connecting the Oppo with the supplied HDMI 18GB cable, and it sounds great.
Tried a few different HDMI’s I had kicking around, and there are distinct differences depending on the cable used, more so I’d say than interconnects weirdly.
Interestingly the Monoprice one with the Redmere chip doesn’t work at all here.

So...the quality (and length?) of cable really matters here it seems?
The Oppo cable Im using is six foot long, probably not ideal for i2s.
Worth “going large” with this one I think, will do some rummaging about online for this.

But yeah,
A very worthwhile mod, digitals stepped up in a big way and whilst Im not comparing it to the six grand PS Audio i2s disc transport, it DOES use the same Oppo disk mechanism and with the linear PSU, disc stabiliser and other mods I’ve done, the Oppo sure makes for a good digital transport. 
The bonus being of course I can now play my Roon/Tidal/Spotify music library (and CDs...never thought I’d go back to those!) through a far better digital connection and make better use if my Dac, the PS Audio transport doesn't.

Just need to get that HDMI cable sorted... 


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