Looking at new attic with acoutic panels in ceiling system will include 9.2 system Denon 4306 for secondary system . Main components in set-up include Denon 4520C1 150 watts/8ohms x 9 expandable to 11.1 Running Klipsch RF 82 back surrounds RS 35 side surrounds RB81 side surrounds RC 62 center channel running Klipsch RW10D sub for now but looking to replace with SW 115 Parasound A21 Power amp 250 watts/ 8 ohms to run Klipsch RF 7s Attic has peaks and valleys 1 room is 17 x 12 The other room is 18 x 10 but regtangular with knee walls 4 feet high what room would be better for speaker placement Any advice would be greatly appreciated Thanks in advance Craig