When you state that you hear a buzz when you turn the volume up, how up are you talking? If you don't hear it when the CD is on (not on pause and not playing) and at a reasonable volume level, then you shouldn't be concerned. If you do, try using shielding interconnects btwn the CD player - preamp and preamp-power amp. Is this hum nonexistent with other components?
last try :) buzz in system
Buzz in system with Proceed I have a Proceed DAP CDD combo running through a Denon AVR 3300 for a pre amp. If I put the cd player on pause and turn the Volume up to high listening levels, there is a buzz. I thought it might be the cables (Apature silver) so I used az different set. Same thing. The amp I am using is a Mac MC 162. I thought it might be the Denon creating the buzz so I ran the Interconnects right out of the Proceed DAP right into the amp (you can do this because the DAP hhas a volume controll on it). THE BUZZ WAS LOUDER!! Took the DAP into the shop and they could not hear a thing. Any ideas? Gary