I am planning out a 7.1 system which will eventually have Maggie front channels and center channel. The surrounds will just be bose cubes. The room is 20' by 20', and I want to have realistic volume levels, not the low levels I am used to with my Quads (nor deafening levels). I have seen people promoting Denon 3803, HK 525, NAD 762/763 as well as sundry Onkyo, Pioneer Eliete, and Yamahas.