PM me if you are interested and I can get pictures.
15 Inch Fi BTL N2 Dual 2 ohm voice coil, custom psi recone with extra long voice coil (Even longer than fi's extended voice coil), Triple external tinsel leads (Fi's tinsel leads are a bad design). This thing can take some power and get low. I had an Audioque 2200d on it, but I think it could use more power. RMS without the recone is 2000 watts. This sub probably weighs about 40 pounds, even though it has neodymium magnets.
This is an SPL sub but it sounds great, nice and clean plays really low. Free shipping in the continental U.S.