For me, it's .7s powered by a pair of PS Audio M700 monoblocks, with an old Hsu VTF2-MkII single sub. I've never been happier with the Maggies, including long ago when I had MG-1s with a GAS Son of Ampzilla, and then a B&K ST-140. As far as the sub goes, I'm sure there are probably better units out there by now (the Hsu is about 12 or 13 years old), but I'm happy enough that I don't feel the need to upgrade.