Finally got my Rythmik amp for my AV15 and wanted to test them out. I wired up the AV15 to the amp in series to the amp. AV15 is running fee-air. So I put in bass cd with gains turned down and raise it slowly half way. No probs. Everythings is going fine at this point. Then I put in LOTR/FOTR. I failed to turn down the gains (bad move). The first war scene comes on and WHACK WHACK. The speaker bottoms out about 8-12 times before I can get it shut down. It sounded like i was hitting a hammer on an anvil or something. I ran it a little after that before the wife and 2 year old got home and it seemed OK. My question is, could this have weakened or damaged the speaker any?