The Jensen subwoofers models JPS8, JPS10, and JPS12 all have this f arting problem. I know it because several friends of mine bought them due to the dirt cheap prices. Audiovox/Jensen doesn't officially acknowledge the problem but their tech services would "check & fix" it if you send the amp to them. If your is also a Jensen, check www.audiovox.com website for tech service contact info. Without this problem, those subs would have been excellent subs for the money because they sound very good and cost very little.