I don't know which forum to put this question, so lets try here... I'm having noticeable dips in my volume, it is very erratic and unpredictable. I'll be playing for 10 minutes and everything's fine, then my volume will start to fade, and for a couple of minutes I'll have noticeably less volume. Then it will fade up again, to full volume. My first guess would be that my amp needs a tuneup, BUT (this is a big but) I split my signal to two amps, and both amps have this volume loss. (Also, each amp is plugged into to it's own AC outlet) My signal goes into a Korg Pitchblack tuner, then into a Boss CE-3 chorus where it gets split. There are a bunch of pedals downstream after that, but I can't imagine they matter. My bass does need a setup -- is it possible I have a short somewhere, or a loose wire? Does that make any sense w/regards to fluctuations in volume? In general, things usually work or don't work - (except for maybe in the amp world) so I'm stumped. What could this possibly be?