My question and concern has to do with an annoying scratchiness that I hear when I pan the balance pot from the center position to the right speaker position. The sound and accompanying violent woofer movement comes out of the LEFT speaker. If I pan the balance pot to the left there is no scratchiness. I had the same problem using the original PAS balance pot so I switched in a new balance pot from tubes4hifi so I don't think it could be the pot.
Does this sound like it could be tube related? I've tried different 12AU7's from my stash since I have quite a few to play around with. I would appreciate some advice before I break down and order 4 more 12AU7's. Thanks
Last edited by Elrick on Sat Jun 22, 2013 12:06 pm; edited 1 time in total