Our foundation walls are called "Ice Block". Instead of a traditionally poured foundation, these forms have foam on the inside and outside, and then 8" of concrete is poured in the center voids which are rebar strengthed. These are so much more efficient and many builders are using them.
Anyway, all the exterior walls have the iceblock, except for the walkout area, which is 2x6's. So behind the screen is iceblock with drywall and so is the left wall. The right 6ft wall is framed with 2x4's and has drywall.
I think I will try graphing the room one more time with the sub in the left corner and compare all three graphs. Right now I think I'm getting the best sound I've heard with the 500 in the left corner and the 60's as close as I can get them without interfering with the screen.
By the way, got the pool table all felted and had my first game with my 7 yr old tonight, if he keeps practicing he will be as good as his old man.
