Buzzing noise coming from speakers (bose acoustimass 5). volume up on the buzzing only happens in phono mode - no increase on other modes.Had amp since new and no probs. I think it was left on for a day and half which is when the buzzing started
Audio Players & Recorders - NAD
Answers & Comments
The coupling capacitor on the phono input is possibly become leaky. Try replacing any small electrolytic capacitors you see near the input within the amp.