I've go an issue with my sub. Its not exactly the best sub in the world (a £50 Sony Set for PC) but does do the basics OK. But the major issue I've noticed the last few days is that whenever a bassline I play has a C note in it it properly resonnates, and this note comes out about three times louder than all the other notes. Only with a C, a B note or C# do nothing. It fucking sucks. Makes any tune sound unbearable when theres a deep C note played, things start vibrating off the walls! I guess its to do with the specific ressonant frequency of the C pitch. So i'm basically screwed, right? Nothing I can do about it? So, any recommednations for a real good set of speakers and sub for about £80-100?