While an Atma-Sphere MA-1 certainly works with the Magnepan 3.6 speakers, particularly in smaller rooms and at lower volumes, these speakers absolutely shine when driven by the Atma-Sphere MA-2. A marvelous combination.
OTL Tube Amp for Maggie 3.6?
I've heard OTL needs an impedance curve that never drops below 4, and flat is better. I think Magnepan 3.6s drop here and there below 4, and certainly aren't flat.
So, would OTL not work?
I think from what I've read it wouldn't matter, but would getting one with lots of power make a difference (i.e., Transcendent The Beast) or is that irrelevant?