After moving to a new home and re-assembling the set up, my left speaker pops loudly when I turn the NAD 370 on or off. The setting of the volume control has no affect. It did not do this before the move. Any ideas about this, guys? Thanks.
There's a good likelyhood you have a bad capacitor on the outputs or in the muting circuit which has now shown up. It's fairly common for equipment to experience this sort of failure after being allowed to cool completely during a period when it is not plugged into an AC line. If the amp has a standby circuit, it remains warm any time it is plugged into the outlet. When you allow the amp to cool, the bad piece shows up.
Hmmmmm..I never used the remote, standby feature before, always turned it on/off manually. To get around it now, I just switch to the unused "B" speakers, then on/off. I suppose I could try hooking to the "B" speaker circuit.
Bought the NAD in 2004...It was on a wooden shelf on a wooden floor before. Now it's in an entertainment center on tile. The NAD is plugged into it's own wall socket with a plug-in surge protector.
Capacitor problems such as this normally do not "heal". Since most muting circuits are no longer based upon relays, there is little hope for that possibility to miraculously heal either. You could set it in front of a TV with an evangelist banishing the demons and see what happens (a small contribution might help). But, I think I'd be looking for a service department.
Well, I took the three year old C370 in for service. The technician says it's functioning normally, no audible popping in the "A" speaker circuit when the unit is turned on & off. I told him to leave it powered up over the weekend...try it again on Monday.