I added one more sub today. DIYcable and Adire audio have partnered up to produce a new line of subwoofers being sold under the name Exodus Audio. It is a sealed Tumult based subwoofer with a 1000W Keiga plate amp. I'm not exactly sure what the name is but I've emailed Kevin Haskins of DIYcable to get that.
Here are some links to more information on the sub:
http://www.diycable.com/main/default.php
http://www.audiocircle.com/circles/viewtopic.php?t=5013
Here are it's numbers compared with the top performing subwoofers in the list:
Stryke Power 15 prototype 115.3 / 16hz~99dB__25hz~106dB
Klipsch RSW-15 112dB / 20hz~97dB__112dB~32hz
Velodyne F1800 MkII 111.9dB /
Exodus Audios flagship 111.3 / 20hz~93dB__25hz~104.8(111.25dB)
SVS 20-39CS(not ISD)&Fidek FPA-3002 - 109.5 / 20hz~91db__25hz~105.8
Velodyne FSR15 - 109.1 / 16hz~90.1__25hz~103.1
Klipsch KSW300 - 109dB / 25hz~92dB (107.25dB)
Mission 700as - 108.1dB / 25hz~102dB(106.8dB)
BW asw1000 - 107.9dB / 25hz~96dB