I thought this would be of interest to some. Looks kind of neat, no specs yet except 3" peak to peak excursion. That basket and motor would look nice in a trunk.

http://www.diymobileaudio.com/forum/...ml#post1548368

 

That could be fun to beat on lol

 

I put it in the excursion/SPL calculator and if you take the AE IB15's 25mm xmech you get 119db before cabin gain. If you use 35m xmech you get 122db. That's a nice 3db gain, it should be barely audible. Maybe it's more after cabin gain, who knows. Then again, I was happy with a single 12W6 that could only manage 109db at it's mechanical limit. I guess at some point it's overkill but it's always nice to have headroom.