tnoble1

If you want to get technical, the O.C. material is still rigid and it is insulation... but i understand what you are saying. Like you said stryofoam wont work... This is kinda like the thought of going to buy a staight edge screw driver... its really called a standard screw driver... or going to get a saws-all... if you dont buy the actuall brand name saws-all it is just a reciprocating saw... we could get technical all day, but i have the feeling you knew what i was talking about. But for me to clarify my own comments from earlier... I do NOT suggest to go out and by rigid styrofoam insulation... But i would suggest a rigid pressed fiberglass insulation.

I think you are getting a little concerned with wording... I guess you could look at it as like the foam rigid board...but i guess i just assumed that it would be understood as a pressed fiberglass insulation. It was my error in assuming to much.

I have been reading this and dont know if you still are thinking about this... I personally dont buy product from companies anymore...they are expensive and in my opinion not as good. (not to be to subject lol)... My favorite is the really rigid insulation... and you can make a frame and suspend it in and cover it with whatever cloth you want as long as it is breathable.. Personally the primary reflection wall is what i would concider the main problem... Basically you dont want to have a ton of reflections bouncing off the room... I cant say for sure, but that would be my guess... And rubber mount under everything... especially sub... dont let things touch the floor its all around better. And I would put in as much bass trap as you can possibly get away with... you can never have to much... like i said you want the source and not the reflection... your not in a concert hall...and yah i would treat also the side walls periodically and behind each speaker. There are ways to make all the appliances do the job correctly and still look really good. but then again its a time/money issue... I hope that whatever you do/did will work out for you and you will be able to enjoy some bone chilling movies with a killer sound!