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HDMI cable for I2S

I’ve got an old Oppo DV-970HD I’m using as a transport into my Musician Pegasus R2R DAC in my headphone rig. The Oppo has an HDMI out (that does output 2-channel PCM) and the Pegasus has an HDMI I2S input, so I was wondering if any HDMI Cable will work for this? I recall someone saying you need to check with the DAC manufacturer to see which pins are live, but just wanted to check here to see if I’m missing something or if this can even work. I’m thinking of getting a 0.5m DH Labs Silversonic HDMI 2.1, so would this cable possibly work for this? It’s marketed as a video cable so not sure if that means anything or if HDMI is the same for audio or video. Thanks for any help/insights.

soix
lordmelton's avatar
lordmelton
877 posts
 

@auxinput is correct and the HDMI input on your DAC has nothing to do with the HDMI output on your Oppo. They are two different animals. They are the same physically but the type of signals they require are completely different. Do not plug one into the other.

If you want to use the HDMI input on your DAC you need the Oppo I2s card, no ifs or buts or whatevers.

The HDMI output on your Oppo transmits Video and Sound for watching movies  and as Auxinput correctly said if you decode the sound from this HDMI cable it won't be better than COAX.

totem395
390 posts
 

@soix

 The crux of the matter when connecting different brands via HDMI I2S

 is pinout matching since there is currently no standard. Assuming the output 

is in fact I2S since they HDMI terminals visually look similar.

I'f I'm not mistaken the Pegasus has the ability to accommodate 

several options to match the I2S pinout of other equipment. 

Check with Musician or the web as I've seen a diagram posted.

 

 

 

soix OP
9,549 posts
 

Thanks guys!  You answered my question.  Interesting and most helpful. 

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