I got a gig tonight and something is wrong with my cabinet. It's an Avatar B210 Neo. for some reason out of the right speaker when I play, I notice kind of a crackling noise. just a bit. kinda sounds like there is a piece of paper in the speaker that is rattling around when I play. And I also noticed a little volume change. It seems just a teeny bit more quiet when I play. Now here is the thing...I went to jam with my friend a few days ago, and he is a loud drummer. So...I had to put my volume all the way up. and I also had the limiter on so I didn't think anything would happen. My amp is 350W RMS, and the cab is rated at 500W RMS. So how could this have happened? and what is wrong? loose wire? blown speaker? cones? what do I do. Thanks.