This question is esentially a duplicate of a question I posted earlier today (thread title = Questions for Cirrus Owners). Based on some info I got since the original posting, I thought I'd ask this similar but more general question, rather than limit myself to just the Cirrus crowd: What sort of odd, dysfunctional things can happen when you've got dying preamp batteries? I bought a new Cirrus yesterday, and brought it back to the store today because it would intermittently make a horrific and full-signal static-crackle-pop. The store says that fresh batteries have cured the problem. I hope they are right - but having never had a preamp of this sort, I would assume that a dying battery(s) would tend to give a distorted fuzz, but in a weak and dying tone sort of way. The fact that my noise is so loud and angry makes me suspect. I'll get to figure it out soon enough, but I've got a tight schedule over the next few days and my next chance to really get some playing time will be a gig on Saturday - it's gonna suck if I take my new baby on stage and she loudly craps out in the middle of a song! Anyway, any thoughts on this issue are appreciated.