Small Sub Recommendation

I figured rather than driving myself crazy(er) that I would just ask on this one. I'm looking for a small subwoofer driver that I can use in a 3 way design. Would like to get a pair to run it in isobar. I would be matching them with a RAAL 70-20 and a purifi 6.5" driver (still haven't decided which). I'm already aware of a few that may fit the bill from dayton, kartesian, and misco, but I figure I would just ask around to see if there's anything I missed. Any help is appreciated :)