Hey guys, I was having problems using my Bass Pod Pro with my sunn 1200s, thinking I had a ground loop problem. I tried every trick in the book to fix the ground loop, but I was turned on to the idea of magnetic interference from the Sunn in this thread: http://www.talkbass.com/forum/showthread.php?t=635642&highlight= Is there any way to fix this? I got rid of the Bass Pod and got an Art 351 graphic EQ, but the problem persists. A quick google search told me that there was no way to block the magnetic field, but could I replace the power transformer in the Sunn? How much would that cost?