i just picked up 100sq ft of this stuff and its working wonders on my stereo. it was 124.99 with shipping and they include a free roller and cutting tool. This stuff works. u will need to add at least 2 layers or more becuase it isnt as thick as dynamat but with 100sq ft you can afford to do it. i will post pictures on my cardomain as soon as im done with it so if you wana see just check that out