Right where do i start, well, about 6 months ago the tweeter on one of my MS5.10's gave up ; front left channel. Until I can afford to buy new speakers I had some old "VIDEOTONE MINIMAXS" so i used them, CRAP iknow. Now the same channel , but , this time it's the mid/bass unit that's goosed, I'm not sure if it's mis-use,by teenage daughters, or a problem with amp. If it's the amp, is this MAJOR SURGERY i.e. loads of money/new amp.Has this happened to any sony 930 owners, the amp isn't 3 yet & I quite like it. Hope someone can assist, thanks. I could always jump in the Mersey I suppose.