RLwainwright has succinctly captured the conventional wisdom on driving Maggies with solid state amps. There have been many threads on driving the 3.6's specifically, which you should consider if you haven't already. Magnepan typically uses brystons. Others have had good results using high current amps from Pass, Cary, Plinius etc.
Tube amps with maggies also has a devoted following.
Tube amps with maggies also has a devoted following.