best amp for Magnepan 3,7

I am using an Audio Research D400II to drive my 3.7s. It has tons of current with 400 watts to the 4 ohm load and is very neutral IMO. Tried two of them bridged for mono since I was bi-amping an earlier model, but that makes them a 2 ohm load and while they could drive them, prefer the single amp in 2 channel mode. You get find them used for under around 1600-1900

Just for kicks now using the other AR amp to drive a pair of Klipsch Cornwalls. With 100db effeciency now I can annoy neighbors for blocks if I so choose :-)

A little apples to oranges, but I happily run my MMGs with a 40 Watt tube amp at very satisfying levels. Of course, it helps that I use a simple crossover to filter out 65hz and below, but that mainly helps clarity. I don't think it makes much difference as far as absolute spl is concerned.

I can't believe I stumbled upon this thread. I also have a part of mg111a's and a Tympani bass panel, although I believe it is a from a Tympani III system. However I have not yet integrated the two.

I'm interested in how you handled the crossover--active or passive, and what you use for crossover points

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/