Hey guys wondering what happened with my 12" Kappa Perfect VQ... I had it cranked pretty loud but I didn't think it sounded like my O audio bash was clipping. Anyway when i turn it up a little bit now it makes a slapping noise. When i turn the crossover down to 40hz it doesn't slap as much as when its at 80hz or above. Is it blown? And what sub should I get to replace it in the simple kappa enclosure if its blown?