If the hum is coming from your speakers, try using a 3-prong to 2 adapter on your power cord(float the ground) and see what happens. That may solve your problem.
Some may say it's an unsafe way to run your equipment but I've had several manufacturers tell me that floating the ground often improves the sound by providing a lower noise floor. A couple 'phile friends and I have been doing this for years and almost always hear an improvement.
If the sound is coming from your amp, you may have a bad filtering cap.
Some may say it's an unsafe way to run your equipment but I've had several manufacturers tell me that floating the ground often improves the sound by providing a lower noise floor. A couple 'phile friends and I have been doing this for years and almost always hear an improvement.
If the sound is coming from your amp, you may have a bad filtering cap.