Didn't know where to put this, but saw link to this on Digg.com

http://www.royaldevice.com/custom.htm

Scroll down till you see where they talk about construction of the subhorn.

Don't know how good it sounds, but I sure bet it's freakin loud.

Anyhow, just thought I'd share some audio craziness with everyone.

That's insane, sure would like to hear it once..

i've seen that before,but would consider that a subwoofer system.this is probably the biggest sub in the world.

http://www.lightav.com/car/mtx/T9922.jpg