I had thoughts of building a 7pi cornerhorn to serve double duty for my HT/Stereo rig in the living room. I have a roughly 2' x 2' area in the corner adjacent to the entertainment center, don't think there is quite enough room to fire a sub into the corner though. Also, I am afraid the entertainment center would block the radiation down that wall.

Sooo, I was looking at the HighEfficiencyLoudpeaker website and was intrigued with a couple of his 6th order alignments, one of which, the "18SW1P" claims to be critically damped with an F3 of 26hz, obviously not producing any meaningful response below that.

Or should I go the "normal" route and build a small sealed box, or ported box using a HT sub like the Titanic III.

I have also thought of building something like Fitz's AutoTuba w/10" driver. A friend and I recently built his T24 with an HL10a for DJ work. I like high efficiency designs, but understand the tradeoff with regards to bulk, efficiency and depth of frequency. Just trying to find a happy medium.

Any and all input greatly appreciated.
Greg