First off, some important info: My speaker is a Peavey PV115D. Its powered. I was playing bass through it, loud

I was trying out for a band today, and decided to bring my new PA speaker. These guys like to play REALLY loud, and I was hesitant on pushing my speakers limits since I was playing bass, but I did it anyway.

You know that annoying sound when you are plugging a cable into an amp, and then it goes away after its plugged in? I still have that sound even when it is plugged in, and the horn on my speaker is giving off a humming noise. Is it blown?