ok so my system had been working fine yesterday at a family BBQ then later that night i went out and noticed i had no Bass it sounded like crap. So i check the sub and usually you can push the woofer in and out with your hand just like it would do when playing. But it wont move at all its stiff as a rock or stuck. Sound comes out of it but it sounds like crap since the woofer is not moving at all. I check the rubber around the woofer and its fine, I even took out the damn sub and still can't find anything out?

I need some help here guys.