Usually the subwoofer at the theatre I work at can blast out a ton of bass. The other day, though, there was a concert with somebody playing music they made off of a computer. I had the levels as high as they could go without risking damaging any equipment. The guy at the computer turned his computer up during sound check and the woofer started rapidly clicking. Ever since then, it doesn't take much bass and it will start to do that. Is there a speaker problem? Is it fixable? Thanks!