[Prof.]

Thanks for that info....$40.00 for 1200x2400 a sheet sounds fairly reasonable...

He shows (on that link I posted) the foil side as the back of the panel, and I've also seen it used as bass trap in the same way, so I guess this is how it should be used..

Making acoustic side panels using a full sheet at the first reflection point seems a bit excessive...unless you have a very "live" room..

One sheet cut in half down the length, and the two pieces placed on top of each other, should make a very good bass trap, and I think this is what I will try first..when I've found a local supplier...

Did you notice any improvement with the test panels?