Eric,
I have a pair of 1.6QR's, the speakers in the middle of the Maggie chain. I think Ritz, one of the deputy gunslingers hereabouts, has them too, and maybe a few others. When and IF I get the 990 operational again, and get a few other things done, I plan to get an MMG-C for a center channel and a pair of MMG-W's for surrounds, the latter to be driven by the Adcom GFA535 that I replaced with the nOrh Le Amp II monoblocks that would be driving the Maggies right now IF MY 990 COULD DRIVE THEM!! GRR!! (oh oh - there's that IED popping out.) For the center channel, I don't know - maybe the just-introduced nOrh L3.
But all that will be some time off.