Before you make your own panels, have a look at these. Excellent price, and I have been happy the results in my listening room with four of their 2 x 4 foot wall panels.
http://www.atsacoustics.com/
http://www.atsacoustics.com/
Homemade sound panels
In the mitts of making my own homemade sound panels.Was wondering if anyone tried this before?I have been doing alot of research on the subject but like to here from some excperience builders.Any tips on material used.Or any thing you whould of done different in your own designs..Any help would be great..