Question Help diagnosing subwoofer

Crunchy409

Distinguished
Jul 13, 2009
18
0
18,510
So after watching a movie for some time my subwoofer begins having a horrible rattling sound. This is a new development. It seems that after I let it rest some it goes back to being ok for a short amount of time, even during scenes that previously had the rattle.

Is something overheating?