At this time Cambridge is having a huge sale and I would like to know how they compare to other subs. I'm looking at the Newton P1005 sub.

SVS, Velodyne, HSU, Dayton T1003K 10" Titanic Mk III Subwoofer Kit or Cambridge SoundWorks - Newton Series II P1005 Powered Subwoofer?
The bottom line-- are the Cambridge subs worth looking at considering the huge sale that they are having?