I was trying to get a large room (15 x 18 x 12') ready for recording and was looking for ideas to absorb the reflections off the cinder block walls. I was trying to find something a little more classy than just stapling carpet to the wall but not as insanely expensive as foam from online or whatever.
If you want i have a friend who sells acuostic foam online a lot cheaper than most retailers. if you want i can give you his email. i use his acoustic foam in my studio and i can say its definitely great quality. it's worked great for me and it didn't cost me much either.