best amp for Magnepan 3,7

Rreid01, here's a recent thread on integrating IIIa bass panels with the Tympani IVa, you may find the information useful:

http://db.audioasylum.com/mhtml/m.html?forum=mug&n=195562&highlight=jon@jonoulman.com&search_url=%2Fcgi%2Fsearch.mpl%3Fauthor%3Djon%2540jonoulman.com%26user_id%3D63605%26forum%3DALL%26sortRank%3DNone%26sort%3Ddate%26sortOrder%3DDESC

Check this one out. I have one running a pair of big Ushers and it is wonderful. Just noticed this thread is old and I'm sure he found something by now. :o) But maybe it will help other maggie owners.

http://www.pearlaudiovideo.com/blog/company-areas/peachtree-area/the-ambassador-of-awesome-visit/

H2O amps. I used to drive the 20.1 with a ARC Ref 210 and i ended up biamping with the addition of a Pass 350.5. Just got the 3.7 and the H2O packs a lot of punch. The 3.7s really come alive with the H2O.