BigJim79
Member
The RPi4 can output via USB to your DAC if that’s your preferred way to connect, but you aren’t locked into USB.
There are quite a few I2S daughter cards available for the RPi that do an excellent job of producing a SPIDF or Toslink audio output, if you’d rather go that route. On ASR, you can read Amir’s positive review of the Allo Digione Signature. Also, for 1/4th the price of the Allo, there is the HifiBerry Digi+ Pro which sounds almost indistinguishable (my opinion). These and other daughter cards attach to the GPIO pins on the RPi. Both of the cards I mentioned come as kits with all of the mounting hardware, and the manufactures offer cases that are properly sized to accommodate the RPi plus daughter card.
Again, it isn’t necessary to go this route, but it’s an option if you’d rather have SPIDF or Toslink signals, or if you are concerned about the RPi’s electrical noise over USB or it’s jitter.
Hey Thunder, thanks for the input. I was looking at those, but as I run my XBOX into the Optical, I really did want to stick to USB really just to save the wear and tear on the DAC. Now I’m going to do a load of reading and let the credit card rip! Cheers.