JohnK,

Thanks for your input. The problem is that the receiver allows me to adjust the level of all speakers except the mains. I have to crank up the volume quite a bit to get reasonably loud sound. I believe that if I could adjust the level of the mains at any given volume and then adjust the other speakers to match the mains, I would get louder sound without turning up the volume knob a whole lot. Am I missing something? Everything sounds great - I just have to turn it up till I see about -30db or so on the receiver display.