Hi Wayne. I'm responding because I am the proud owner of both MMGs and many Axiom speakers (M22's, M3's, M2's, as well as QS8's and an EP500). I love them all, but they are different. Overall, I find the Axioms easier to drive, to place, and to live with.
Yes, the maggies love and need decent power. You can certainly drive them with that NAD (I owned a different model), but I suspect that your satisfaction will depend on the size of the room and your listening habits.
Are these primarily for music? HT? Both? One thing about the maggies is that they aren't as dynamic as most box speakers, at least not without feeding tons of power, and getting upgraded stands to brace them. Then you're in such different price leagues that you can consider Axiom floorstanders.
Lots of things to consider. Happy to answer whatever I can.
Rich
