PlanetZ forums - scopeusers.com

http://www.youtube.com/watch?v=iyYUpkpL0gw

http://www.basstraps.net/

http://www.basstraps.net/DIY-BASS-TRAPS-MADE-EASY.pdf

This link is to more akin to your design spec
http://www.diy-home-theater-design.com/ ... build.html

Can Sculpture!!? Awesome Idea

Usefull and nice links. Thx feg.

Isn't the first trap anyway similar to a mattres? Maybe, tweaking a spring one it could turn out in basstrap...

I was not considering it must have the right dimensions...