It sounds pretty good to me.... Although I have been told that one subwoofer is just about as good as the next. What's
important is that the size of the thing is large
enough to fill your room with sound. I'm no expert.
I got the ksw-12 on e-bay for the price of a ksw-10.
I have a relatively small room for my equipment - A
ksw-10 may have been fine - but the ksw-12 easily
rocks the room - and is nice and smooth at low
volumes. I'm a happy camper....
rwm