Thanks all. I did not think I would have the (physical) space for the KL-525-THX in the center, hence the RC-64. I had no idea the RC was so hugh and heavy. :-) My flat panel is mounted inside a cabinet, though it ia actually inb front of the wall, on an accordian bracket, I 'suppose I could put it the center behind the screen, however, I have found the that gives a too boomy sound from being in that 'open box' of the wall cabinet....
The KS is already in the plans. :-) Just need to wait a bit. Maybe the 650s at some point. Still want to hear the RC with the KLs since i already bought it,