Axiom Home Page Forums General Discussion Technical Questions Is this a ground loop hum?

It has gone from bad to worse . . .

I have now unplugged everything from the back of my AVR65, except the speaker connections. There is no coax or analog connection, nothing from the X-Box or to the PJ. Just the receiver plugged into power. I have tried it both to the surge protector and straight to the wall. I can still hear hum!!!!

Whats worse is that if I toggle from DVD to CD on the front of the receiver it gets much louder. In DVD mode it is so loud that I can hear the center channels hum over the rear speaker's hum despite the fact that I am three feet from the rear and sixteen from the center.

I am now convinced it is my receiver but how do I know for sure? Also, do I want another HK? I am not happy tonight.

Greg