Try unplugging your cable TV from the wall. The cable line is often the number one source of hum heard through speakers.
As for the amp itself humming, I notice that mine stops after several minutes once the amp has warmed up. When I first bought mine, it hummed all the time. Now it is fine.
As for the amp itself humming, I notice that mine stops after several minutes once the amp has warmed up. When I first bought mine, it hummed all the time. Now it is fine.