I know this system is pretty ancient but at the moment I can't afford anything new as I'm getting an LCD TV but... For some time now I have had a problem with one of the speakers, it sounds like there is little or no Bass at all, I can confirm this by gently touching the outer edge of the bass unit, one vibrates and the other one barely moves. I have tried swapping the cables round eg trying the other speaker on that cable and the same thing happens to the different speaker. So I guess now ther is something wrong at the output end of the amp, can this be, is it possible for some bass to work but not all of it? Anyone got any good ideas I could try or confirm what it could be and if neccesary fix please? PS. good ideas without meaning binning it lol cheers!