I need some advice, I recently replaced an aging 2ch yamaha power amp w/ a 2 prong A/C cord with a new amp that has a 3 prong. Now I am getting some ground loop buzzing from the main speakers when I turn on my plasma tv which has the only other 3 prong in the system. I have a tried the cheater plug and it works but is it ok to use? I dont want to damage anything of course. Or would a power conditioner solve this? I looked at the Panamax 4300 that was suggested on another thread but would like a quick yay or nay before I purchase.