Is Cork Effective in Room Treatment?

You might want to use Profoam for your primary reflection points if you can manage to ship it cost effectively. I am using Level Ones in my system and am very pleased. I will use drapes and tapestries for the rest of my rental apartment. Try www.audioadvisor.com for RPGs.

I found Profoam to be a MASSIVE joke. What costs less than $5 to produce is sold for multitudes beyond its' true value. My suggestion is to look at some of the various DIY designs if you are at all handy and go from there. They will perform WAY, WAY better and cost measurably less. Much like cork, Profoam is quite non-linear in its absorption ratios and can skew the tonal balance of a system. Sean
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Sonex panels are fairly reasonable also. They come in 24in x 60in x 2in panels. I have found them very effective. I cut some of them into 12in. squares and lined the back wall in a checkerboard fashion and also used them for the first reflection points. I purchased mine from Audio Advisor. Dale