Fred - did you try calling the folks at RealTraps? (http://www.realtraps.com/). I've seen multiple accounts at AVS Forum of them offering very complete advice once you tell them your situation. Of course they're going to recommend their own products to solve your problem, but it's at least a very good way to get direction on what is correctable using room treatment versus what is not. From what I've ready they'll give you a straight answer.

Jason

Epic 80-800: HG Cherry