Quote Originally Posted by dean_martin
I haven't heard either component, but one of the regular column Stereophile writers put these two together and his comments were positive. From my memory of the article there didn't seem to be any problems with the H/K's ability to drive the MMGs.
The MMGs are not really all that fussy about what drives them. Just make sure your amp or receiver is rated for 4 ohms by the manufacturer; that is the case for HK.

Will the MMGs sound better with a powerful and/or more resolving amp? Yes, believe it! That's the beauty of the Magneplanars in general. My MMGs sounded 'way better with my current amp than with my preceeding NAD. But former cost me 5x what the NAD did, meanwhile the MMGs sounded very good with the NAD.

Speaking of Harmon-Kardon, I briefly ran my MMGs with a thirty year-old HK 330A receiver whose power was no more than 40 watts/ch. The combo was perfectly stable and sound quite agreeable.