Loving my MA 6600 with the AF's. My understanding autoformers give you full power at any impedance. That's a bad thing...I don't think so. And after some many decades I think MAC could employ there use without degradation. That other makers don't use them, cost and the thinking it is not necessary for their designs. But McIntosh has always tended to go the extra mile, and have the philosophy of "bonus built" components.
As for some of the differences in their integrated amp line up. Along with the very musical presentation some nice features, such as electronic tone controls and level matching. Secondary output to drive another amp. Led lighting among others makes for a very nice package in the MA 6600.
As for some of the differences in their integrated amp line up. Along with the very musical presentation some nice features, such as electronic tone controls and level matching. Secondary output to drive another amp. Led lighting among others makes for a very nice package in the MA 6600.