I had the crappiest of my best gigs yesterday. I was playing along, all happy with my FNA Jazzman fretless and all of a sudden things went south. The sound went distorted and then quit! Well, I figured my battery went t's-up, so (in the middle of a tune), here I am changing the battery and then everything was fine. (for a while...) Then the sound went distorted again and kept reducing the volume. I figured that maybe the battery I put in was old and the guitar player gave me one of his new ones. That worked for a little while, and then all hell broke lose. I got that distortion that you hear like when you've blown a speaker on your stereo! Paper-sounding rattle and then the volume cuts out until you really hit a note and then it pops back with a vengance! Sorry for the "book", but here's the question; Have I got a cone going out on my cab? It's a 4x10 with a horn. Or do I have a problem with my amp, or is it my active electronics in the bass? It's a new Warwick, and haven't had a problem with it, yet, and I swear I've heard the beginnings of this sound, even using my Fender Jazz. I'm just wondering what I should have a tech look at first. I'm leaning toward the speaker cone problem... Thanks for the input!