I auditioned a pair of MG 12s at a local dealer with a Bryston amplifier (I can't remember the model, I think either the 3B SST or the 4B SST, one of the physically larger models). They're not the top of the Magnepan line, so this may not apply to those models but likely will to the MMGWs: they don't descend to a particularly low frequency before you can tell they're bottoming out (kind-of). With such a high end amp, I had no complaints about lack of sensitivity; too bad I'd never be able to afford the amp
. Crossed over well with a sub (as you're sure to do with home theater), that may not be an issue. They had a very interesting "full sounding" effect unlike any speaker I've heard (I auditioned the Paradigm Studio 60s in the same room before them). I must say, I do intend to go back and listen to the MG 12s and some of the higher end models both full-range and crossed over with a sub at some point (I showed up a bit late and only had about an hour to listen); they definately left an impression.
