You've got to be kidding me? A .69 cent solution to a problem? Gee you are one lucky dog.

I'm going to have to try that trick out on my amp and see if it works. My whole power setup is with 3-prong grounded outlets, extention cords, and power taps. I never thought the ground loop could be causing the humm/buzz.

Live and learn...

Regards,
Al G