I was under the impression that the analog input on the NPC would accept any analog source. I have tried connecting both my sonos ZP80 and my iphone and both yield no output. The phono section of the NPC works properly so it is not an issue with the amp.
Am I mistaken in assuming a source like an iphone with a built in DAC cannot be hooked up via an analog output to the NPC? Would I need a separate DAC in the chain in order to accomplish what I am intending to do?