I was practicing w/ my band last night to get ready for a gig tonight. I was tweaking my amp when all of a sudden a saw a white flash come from inside the cabinet. It still works, as far as I can tell it sounds the same except at high volumes it tends to distort excesively. I use a 700RB head and an Aguilar DB924 outboard preamp. I was tweaking both of them to get a tone I could finally settle on. I turned up the preamp until I was clipping and then brought it down a notch. I had the amplifier gain and woofer at about 3:00 (3/4) and volume at about 9:00 (1/4)...so I was crankin pretty good. I was doing some final tweaking when I saw the flash. I haven't had time to do any investigating, like I said it still works. I know I blew something I'm just not sure what. Any ideas?