yeah, I wonder how it works too... Kinda of makes sense to use a fan since low frequencies 'moves' a lot of air.
My guess is that the fan blades vibrates somehow or the fan is mounted on a regular woofer piston... dunno gotta check the website.

Last edited by JaimeG; 06/25/08 07:01 PM.
The sailor does not pray for wind, he learns to sail. --Lindborg