I just finally put up my rears mounted high up 4 inches from the ceiling. I havent bought any calibration tools yet so ive been using my Toy Story 2 disc which has Audio setup provided by THX. Ive also been using the built in test tones Denon has on its receivers. When it sends out the pink noise for the Surrounds, I hear it coming out of the mains also, but lower in sound. When I listen to music, in 5 ch stereo, do i want the rears to be heard as loud as the mains? Right now I have the rears setup +6 and the rest at 0 only because when i watch Lord of the Rings i can barely hear anything coming out of the rears. Basically, what im looking for is... How is it suppossed to be? How much sound do i want out of those rears? Any input?