How do I find out my subs' specs?

I got a set of Kicker Comp VR's a while back.  Today I finally got around to taking them out of the enclosure they were in and looked at the back to see the rms ratings.  Nothing.

It just says Comp VR.  It's an older style, i think two models ago.  It does say 4 ohm, but that's the extent of it.

They're 10" and I was hoping to know the ratings, and if by chance, they had dual voice coils (which I highly doubt)

Thanks!!

Thanks DYohn.  From waht I garnered off the Kicker site, the VR is a bit better than regular comps, but those specs are for the recent kicker releases.  I've googled for older sub specs, but still can't find anything.  Oh well, I'll trial and error it i guess.

thanks again,

jme