whats the best way to upgrade your excisting speakers on a budget? im not satisfied with the treble on my powerforce 2000 floorstanding speakers. i was thining about buying a diffrent tweeter and a named crossover like kef, and putting it into my powerforce 2000 speakers, would this work ok? im not really bothered about bass on my floorstanding speakers as i have a sub and i dont like mid range as ive disconnected the mid range speakers on my floorstanding speakers, mostly what i want is high treble, so would buying a named tweeter and a named crossover work for what i want as described? or would i need somethink completly diffrent to get high treble? my amp is a sony DB940 if that helps, many thanks.