DO NOT GET DYNAMAT!!!!
Way overpriced. Go with something like Brown Bread from
www.b-quiet.com or RAAmmat which is what I have and it's great. Do a search on ebay for the member "raam" or email him at
raam@raamaudio.com. Nice guy, he'll be glad to hook you up. $65 for 50 square feet and save $5 per roll if you order multiple rolls.