Sanders Magtech amp.
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Maggies are a fairly constant 4OHM load.
You need solid state versus tubes, unless the
tube amp is a monster. Magic combination
I've heard with 3.7 is Bryston 4BSST, which is
a favorite of Magnepan themselves couples with
a tube preamp. I plan to do 3.7 with 4BSST
and a CAT SL1 Renaissance w/ Phono. Bryston's
own BP26 with outboard power supply would be great,
but I prefer tubes on the preamp side.
Sanders Magtech would be a great match as well
Audio Research's chief tester has Magnepans in his
residence and he even says that Audio Research's newer
D Class amps are the best for them such as the
DS450 or the mono version of them. McIntosh would also
be a good match although not quite up to the sonics
of the others overall.
Unless the room is small and or hardwood floors, less than 250wpc is asking for the amp to run out steam. I measured the draw from a 90wpc amp, tubes in fact, with the 3.6, and making less than 91db at the listening position, I was out of power. The meter pegged. Get a Monster 4bsst or 14bsst if the room is big and you like loud. Tubes are fine if you like no bass drive in a big room. Try both, and measure the power output and db in the room. The facts will speak for themselves. Jallen
Agree with Onemug, size depends on how loud you like to play them and how close you sit. In general, if you like to play the loudest orchestral music at levels approaching natural ones, e.g., 115 dB on the peaks (which is maybe 100 dB on the typical SPL meter), you will either need a big amp, or to accept some clipping. But many or even most people never listen that loud. If you back off 10 dB, you've reduced power requirements by a factor of 10, but perceived loudness by only 1/2. So the only real rule on size is to get what's right for you.
More power is always better in my experience, my top choices for your Maggies:
Pass Labs X-600 (.5 if you can)
Pass Labs X-350.5
Cary Audio CAD 500MB's (what I use with my 3.6Rs)
Parasound Halo JC-2
I've had all these hooked up to my Maggies (with the exception of the X-600's, and the Sanders, but I had an older Sanders and give the new one some love for that). I have had a few other amps on them as well, but I wouldn't put them on the list.
thank's for the responses
I have heard the little magnepan 1.7 with Jeff Rowland 312 (class D) Corus + dCS Puccini & clock
I was shocked how good it was ...
this would confirm the statement from audio Research chief tester reported here by Stewart
now I wonder what would bring class A amplifier ?
the Sander looks interessant too
Unfortunately, the 3.7 can't be bi-amped, otherwise I suggest Threshold S500 for LP 700Hz with Bryston 10B.
I also suggest CAT SL1 Sig. MK2 for pre-amp.
I am using these audio gears for my Magie system consisting of Tympani IV bass panel and MGIII.
My room is 6x8 m with 2.8 m ceiling height, the sound is fantastic.
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 :-)
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: