My subwoofer has a bass problem, idk what's wrong with it, I always have to have my bass very low so that problem wouldn't happen, here's a video: http://m.youtube.com/watch?v=JTZ9ShUrcMo And here is a picture of the system: http://i60.tinypic.com/sy9y5e.jpg The problem is whenever I turn up the bass, it keeps going BRRRRR like in the video. I opened the subwoofer and all the wires are okay and no loose wirings. How do I fix that? It used to work perfectlybefore at max bass.