Linking QUAD67 CD Player to Denon S770H

[TLS Guy]

@TLS Guy : Re the physics, I had been under the impression that the feed from the single RCA output had been digital as the installation guide said it was “reserved for future digital use“. Even if it had not yet been converted, the fact that it worked on the amplifier’s digital coaxial input meant that it was using the amp’s DAC rather than it’s own. That it won’t work on my amp because of the lack of a digital input remains. I hope that I will still be able to pass that physics exam as I admit I have forgotten much.



Tony

The optical connections are digital. So the output of the Quad at the RCA output is digital ahead of the Quad DAC. Now the converter converts the digital electron stream to an optical photon digital stream. The DAC in your receiver will then convert it to analog. Then you can hear it.

 

[Eppie]

The digital coax to optical converter that TLS Guy linked to will do the trick and allow you to use the optical input on the Denon (as that model lacks the coaxial digital input) but I see little benefit over simply using the analogue RCA inputs on the Denon. It's not like the DAC in the Quad is bad and you will likely not notice any difference compared to the DAC in the Denon. I think it would come down to how many devices you have connected to the Denon. If you are using the Cable/Sat and Media Player HDMI inputs and lack connections to support the Quad, the adapter makes sense, but if the Quad works fine on the analogue Cable/Sat or Media Player inputs, you can simply use the other HDMI inputs and just have to put up with mismatched labeling for your components, which I think lovinthehd already addressed. That model may allow you to re-label the inputs in the setup menu.