When i got my jl audio box from someone it had Like cotton all in it.. It sounded good with the Jl audio sub, but i put my alpine x-10 in it and it doesnt sound good. Could all the cotton be messing up the sound because of the major size difference in the sub? The X-10 has a hole on the bottom of the magnet, so if theres like cotton pushed up against it could it be messing with the sound?