I don't know what your budget is, but I've owned a pair of Magnepan 1.7s for over two years. Although I use a different rig at home, the unit I auditioned with (and showed off the Maggies' strengths very well) is the NAD 375BEE. It had plenty of power, but most importantly, it was smooth, musical, dynamic, and had an unexpected and involving level of detail. If you can't swing the price, you could go with the 356BEE, but of course, the more power the better.
Without getting into serious money, the NAD BEE series is an excellent match with the Maggie .7 and 1.7s speakers.
Without getting into serious money, the NAD BEE series is an excellent match with the Maggie .7 and 1.7s speakers.