Quote Originally Posted by lovinmydodge View Post
adding something that takes the back wave and shuts it down is the worst and most stupid idea i have ever heard. In a sealed box there is no need to worry about the back wave. and in ported boxes you don't want to deaden the inside of the box. Hell the only point to using a ported box is that when the sub plays the tuning freq or near it it allows the port to activate the rear wave giving you a bump in the amount of sound pressure.... stopping the back wave will basically decrease your total output... If you do anything to the inside of the box just hit it with some fiberglass resin and hardener. That will seal the insides up good as well as allow for a little better airflow. and other than that the rest of what I've seen here is crap!

You have suggested Parts Express as the place to get speakers and such.... Many of the enclosures they sell seem to come with some sort of box lining....

http://www.parts-express.com/pe/show...number=300-762
How does a layer of fiberglass help allow for better airflow?