A note that I am not sure applies here...I had a ground loop hum even when everything was plugged into known dedicated outlets with a known grounding point.
My problem ended up being the cable connection to my HD cable box. Grounding the cable where in comes into the house, to the same place all my A/V gear is grounded solved the problem.
I never would have thought the stupid cable was the problem!
My problem ended up being the cable connection to my HD cable box. Grounding the cable where in comes into the house, to the same place all my A/V gear is grounded solved the problem.
I never would have thought the stupid cable was the problem!