Will my Krell drive a 2 ohm load?

Yes it's not that they can drive big current down to a short, it has protection circuits that either switch the amp off during a shorted output or severely current limit it's output, not a great thing it's said for sound quality.
As you'll find amps like Agostino, Gryphon, Krell, ect ect don't use these types of circuits as they are said to be detrimental to the sound, but then they can also blow up if shorted.

Cheers George  

hook it up and find out 
 what's wrong with you? 
   Don't take that the wrong way big dog     

I did hook it up.  

Well, actually, I swapped out the bass and mid/treble in the biamping setup first, so that my Classe CA-200 was on the bass and the Krell KAV 250a was on mid/treble duty. The Classe is rated down to 2 ohms although it doesn't double into it. 

Without the DWM's resistors, it sounded horrible.  The Classe lost all control of the bass and it was just one big boom, no matter the level set on the crossover.  

Add the resistors and it is an entirely different story.  Much of the clarity of the bass is restored and the speakers just sound a little "thicker" and weightier.  The bass panels are not screaming, just adding a little oomph. Still needs work, some tweaking, perhaps separate amplification and full range input (bypass the active crossover) for the DWMs, but I can see that this has some potential for an improvement in the Maggie experience.

The Classe has been playing for an hour now and isn't hot...

Update:  been playing at low volumes for many hours now. Classe is still not hot (cooler than the Krell, actually) and my ears are adjusting to the slightly stronger bass.  

This needs to be better integrated and dialed in.  There's work to do.  But it appears that adding the DWMs is a worthy endeavor.  At least as a fun test.