Homemade sound panels

Silicone around the edges of the pegboard or it might vibrate or, better yet, avoid it. The pegboard is the same as the wall that you're trying to get away from. If the pegboard were in front and not touching anything, that would be a membrane but not a good one.

The foam might be better aesthetically but it's less functional than double thick 705. For a single layer of 705, I would expect reduced effectiveness below 200 Hz. Double thick is fairly effective, with the air space behind, down to 100Hz.

Owens Corning 703..4-2'/2" thick...you can buy a 6 pack off ebay for under $100.00..works well if your handy with material covering

For bass traps, would I be better off with one, 4 inch thick panel (24" x 48") in each corner or two, 2 inch thick panels stacked vertically (24" x 96") in each corner? Or is there a difference?

Here are two links to DIY help:
www.ethanwiner.com/acoustics.html
http://www.bobgolds.com/
http://forum.studiotips.com/viewforum.php?f=8&sid=17689dd547daffa3ecfd9db0fe725313

I read somewhere that using pegboard acts like a resonator .With the hole's like bottle openings..The reason im using it is to keep the aurelex and the OC 705 seperate.The frames will be mounted about 3 inches of the back of the wall to let sound in from the back also..