I got my new GK 1001RB head a few days ago. I love the amp but it hums like crazy if I'm not touching a metal part of the bass or head. I only have 2 prong outlets at my house. All my other amps have hummed in the same manner but it was low enough that I could ignore it. The GK's hum is LOUD and it's killing me. It's almost completely silent when I'm touching it, but if I take a finger of the strings for just a second (happens alot when pick playing) the hum will mess up my groove. What can I do??? I tried taping a piece of speaker wire to the head and putting the other end in a glass of water with pennies in it. It didn't help. The only option I can think of right now is changing my technique so that atleast one finger always stays on the strings. I really really really really really really really don't want to do that.