The living room is 12X14, and the room does have carpet. Currently i have a pair CS13's as my front and rear center, Polk no longer sells the center to match the r series

, but the cs at polk said either the cs1 or 2 or the CSi 3 would go fine with the r series

. Any other details i can provide i will. As i stated before, This is my last piece of the system to be upgraded until we move back home and i actually will have a basement.
Also, any comments on earthquake subs? I picked up one real cheap at CES. I got the MKIV-10 and it seems to do a pretty nice job for the price.