Pure Class A amps above 100 Watts?

Been Solid State boy close to 15 Years, before that it was tubes.

Now I'm back to Tubes but using OTL Atma-Sphere Amplifiers. It does what the Solid States can but also all the goodness of Tubes.

So my Recommendation at min the M60 but you should aim for the Atma-Sphere MA1, Plenty of Power, Purity, Smoothness, Musical Presentation, Fatigue Free Listening, Emotional Impact, Speed, Dynamics, Clarity and above all Satisfaction. 

The Solid State put me on the merry go round, the Atma-Sphere took me off it. Iv had a bunch of SET amplifiers & Push and Pull. Over time I always go back to my OTL Amps.

Vandersteen amps are water cooled

Mitsubishi da-a10dcHitachi 8500

Wilson Shen asserts Clayton M300 are full class A amplifiers but they are fixed internally bridged designs with each channel composed of two balanced bridged 75 watt full class A amplifiers.  I believe all Constellation Audio amps and Naim Reference Amps are also balanced bridged designs. Not sure about their class of operation.

Krell KRS-200.
When biased as intended you will be looking at approx. 400 Watts Class A before it reverts to Class AB.