Channel Imbalance at low volumes


Hi guys!

I got a sweet sounding NAD 7175PE the other day! It sounds rad at high volumes, however, at low volumes a significant channel imbalance appears. The left channel becomes MUCH dimmer than the right. The problem exists while using either the A or B terminals, but it also flips sides if I swap the left and right speakers, so it's not the speakers or speaker wires. Interestingly, the "A+B" speaker selection produces no sound for some reason. Not sure if that gives any clue as to the cause. Anyone know what's wrong? Thanks!
leemaze

Showing 3 responses by imhififan

Amplifier at this age (30 years old?) all connectors, switches, selectors and pots should be cleaned by using DeOxit

You may want to get an audiogram, to rule out a hearing imbalance. Recruitment occurs at higher volume levels.
Or use headphones and see if the problem still exists