Chayro-- Thanks. (Now I just have to determine what 'ground lifting' means! But i believe it means-- get in there; don't electrocute yourself; and find out what the problem is the hard way.)
Grounding boxes which ones have YOU tried? And results?
Just curious have never tried the many grounding devices that can be found on the web from companies such as: Synergistic Research, TELOS, Entreg, Nordost - QRT, Audio Magic -Blue Dot Eliminator, Signal Ground Solution or many DIY. Do they do what is claimed? Are they worth the $$ which are from a few hundred to many, many thousands! Which units have you tried/used and what were your results?