THanks guys, I was thinking about having a grid of about 6 or 8 of them on the back wall. I'm trying to find something that'll 1st work, 2nd, look good... maybe even kinda like art, and 3rd... somewhat affordable.
Most of the panel I've seen just wouldn't pass the wife test. I moved an 4 panel oil painting on that wall and it did seem to make a difference. I'm not sure what exactly, but thiings do sound different though I have yet to really sit and listen. The painting is a bit small for the wall, it's 4 2x2 canvases. I'm thinking about looking for two more substantail canvas painting for that wall maybe 5x4 each. I'm assuming that has to be better than a bare wall.
I'm also thinking that fixing one problem may just bring to light or even magnify another, however. I notice a lot of setups have treatments behind the speakers. Does the fact that I have bi-polar speakers (Def Tech 7002's) change the way I would handle that?