Rick, any reason you're considering the QS4 over the 8? just curious.

My room is virtually the same size as your's but with an 8 ft ceiling. I'm using the Denon 2809(has pre's) and have to say it's an excellent unit for the price, although I don't know what they go for in the US. That Onkyo 806 that John listed looks like an awesome deal as well.

Half of communication is listening. You can't listen with your mouth.