This subwoofer is 5 feet square, 1.5 feet tall, is driven by 4 15” sub-woofers, doubles as a large coffee table & quite literally came to me in a dream while I slept.
While I would like to build it one day to see how it sounds, it prolly won’t be anytime soon. This sub has a very low WAR rating. (Wife Approval Rating)
Google Sketchup dat file – http://quartz.morpheus.net/quadhorn/quad_horn.skp