Will my Krell drive a 2 ohm load?

Really too stressful? I would guess that if any amp can take it Kell would be a good choice.  However Subs would be ideal.

Not all Krell’s have the same capabilities. 

thanks for your opinions!  I have 2 REL subs in this system already. The DWMs are supposed to augment higher frequencies than the subs.

After doing a bit of research, it's hard to say what the answer is.

One clue is that the specs show a power rating for bridged mode only for 8 ohms, and not for 4 ohms. In bridged mode the amp would "see" a 4 ohm load as a 2 ohm load. So that is not encouraging.

Also, these measurements of the three-channel version of the amp, which is specified identically to the two-channel version in terms of power capability per channel, indicate that the amp falls somewhat short of doubling max power into 4 ohms (498.7 watts) compared to 8 ohms (294.8 watts), based on the 1% distortion numbers. That is also not encouraging.

On the other hand, though, the specified 8 ohm power rating for bridged mode is 4x the rating in stereo mode, which suggests that the amp has robust power supply and current capabilities. Also, I suspect that the impedance of the bass panels is much higher than 4 ohms at frequencies above the bass region. (You might want to ask Magnepan about that). So those factors are encouraging.

Regards,
-- Al

P.S:  I'm not sure what the reference in your initial post to an "active biamp setup" means.  That would seem to imply that there are two sterero amps.  Is that the case?

Regards,
-- Al