Trainun, I just bought a pair of KSB 1.1's that I plan to use as rear surround speakers. When they cam in, I hooked them up as my mains to give them a little test. I was quite surprised at the fullness of the sound. Very, very good. The best part is that I purchased at www.ubid.com for $49.00 each! They usually list the KSB 1.1 a few times a week, at a starting price of $39.00 ea. I wouldn't go over $40 or $50 each because they appear to have a vast inventory of these. BTW, I also purchased the KSC-C1 and KSW-12 from them. So far, so LOUD. ;-) Good luck.
Mark