It doesn't matter what the cord has [brick to the wall], that's all AC side (irreverent). The amp probably doesn't have much of a ground plane, I know the new redesign indeed copies do but not sure about the one you have. Either way voodoo fix works some what yay. Haha yah don't do that. I did that once with an RCA connector (It wasn't that close but it has a lot of power).
3/12/11 at 2:24pm