wave box?

[COGCaviZ24]

its called a transmission line box..do a search for transmission line and you should find some sites w/ how to's. i remember sound sensations and the source would build them and sell them for like $150...i laughed at them when they offered on to me once and told them i would build it for $40 in MDF myself.

you sir are correct!!

if you want to have loud sound in a small space, then a trans. line box in perfect. or if realy into SPL