My current set-up is Sherwood 5x100W amplifier, Tannoy M3 floor standers, Tannoy MC centre and Wharfedale Modus Cubes for rear channels. I have a second-hand Aiwa subwoofer which I got in trade for something else. I wanted it mainly for movies, but I find having it in the system sometimes screws up the sound. (For example, testing today, it sounded great with one CD, crap with another, and with talk radio on there was an intermittent rumble apparently generated from the speakers voice.) The Aiwa has to go - so the choice is between having nothing (surely the floorstanders ought to be all I need for music and throwing in a subwoofer is always going to screw things up?) or a subwoofer that will not screw-up the sound no matter what I'm putting through the Amp. Will a MJ Acoustics Reference 100 suit me? I should add that £350 for that is at the top end of what I might be willing to spend. Also, I don't listen to music much, and I'm probably one of the least fussy people re. sound quality in this forum, but the Aiwa subwoofer screwing up dialogue (it also sometimes seems to interfere with centre speaker) is not something even I can put up with.