Subwoofer pairing with new Magnepan .7's


Greetings! I've just set up my new Magenapan .7's speakers and are really enjoying them. I'm feeling that they would benefit from some bass augmentation. I'm asking what subwoofer pairing have been successful with Magnepan speakers? My amp is a Rogue Sphinx currently. 
Thanks!
128x128beernut
A pair of Rythmik's are quite nice with the .7's (and 1.7's and 3.7's!).
bdp says...

"A pair of Rythmik's are quite nice with the .7's (and 1.7's and 3.7's!)"..

I'll add:

...and MMGs (which I've used them with).

As always, I recommend a quick visit to HTshack.com which offers extensive subwoofer test data.  The proof is in the listening, but it never hurts to be informed.