My porous absorbers const. (Yet another new member...)

Hello everyone, yes I am new to this great forum - and would like to share this little diary of my rather simple broadband absorbers. As I am going to move to another place in the next few months, I'll probably going to move the studio and do a complete redesign. For these absorbers I've used polyester material, rather than rockwool. see: http://www.haama.com/snowhite.html I've included the density information and NRC tests of the material inside the thread. The downside, is that I didn't have any measuring tools to really measure the overall effect A->B. http://forum.studiotips.com/viewtopic.php?t=1401 (I'm sorry for the external link - can't really bring it over here.) enjoy reading, Philip