Ok so I'm trimming down on the stuff I have. I have a klipsch ksw10 sub and 2 Yamaha yst-sw215's. My question is which would be better to keep? The matched pair of yamaha's or one Yamaha and the Klipsch? The Yamaha's are 8" 150 watt. And the Klipsch is a 10" 225 watt sub. Is it better to have a matched pair for a theater room or can I have different subs without running into problems?