Not a big deal...easily fixed. All you need to do is "break the ground" on one of your grounded components in your system(amp,preamp,cd,waterver). This should do the trick. Just use the "cheater plugs"(3 prong down to 2) you get at any hardware store is what you put on the end of one of your componets power cables. The system is still grounded through connections between them.
If that doesnt' solve it, it's probably your interconnects or speaker wires being interfeared with each other, or the powercords. In that case(if scenario #1 doesn't solve the problem), just move you're interconnects or cables around until you identify the hum..or eliminate it!
Good luck
If that doesnt' solve it, it's probably your interconnects or speaker wires being interfeared with each other, or the powercords. In that case(if scenario #1 doesn't solve the problem), just move you're interconnects or cables around until you identify the hum..or eliminate it!
Good luck