I'm trying to figure out a way to deal with a ground loop problem I have at home, this is 60hz mains hum that comes out of speakers, even when nothing is connected to the device besides power cable. I ...

I am setting up a home theater system and as soon as I connect the HDMI cable between the receiver and the TV, I get a nasty 60 hz hum through my subwoofer.<BR><BR>The TV is on a separate outlet than ...