Atomic Subwoofers

I ended up with a pair of Atomic Apocalypse subs in a trade.  I am not sure if they are the ELE or X models, or if they are just the standard Atomic Apocalypse.  Does anyone know anything about these subs?  I have 2 12's now.  Anyone know where to find the specs on them?  I cannot find a manufacturer website and I need to know the air space specs.
 
Any help is appreciated.

Well I managed to find their website now.  Apparently, you have to search Atomic Loudspeakers.  If you search Atomic subs or speakers, it doesn't find the main site.  WTF?