I backed out all of the Yamaha room correction. I know the settings are not necessarily optimal but to get the speakers to sound well I had too. The room is shaking from the base in the movie Avatar some of which is felt, not heard. The people I got the speakers from no surprise specialize in Anthem, and the reviews for their MRX line are excellent. As I said before, I am overwhelmed with the Yamaha and am having problems following the manual because it is so poorly laid out I cannot make sense of it. As I said before, I need the help. The original people I bought this from originally are no longer in business. The Paradigm dealer I work with now is new to me and is a 45 minute one way drive to their place across town if the traffic is not jammed.