Class A amplifiers - which are considered the best

Levinson ML-2,
Levinson no. 20.6
Sumo Nine
Threshold SA/1

The best Class A amp or any amp for that matter is the one you like best. What I like in an amp most likely will be something different than what you like. You can take people suggestions but only you can tell what is the best. This is like asking what shade of blue is the best.

Surely The Gryphon amps must be in the mix there ..... stunning!

I have to agree with Rocco. The Burmester 911 MK3 must be heard regardless of price. It is simply stunning in sound and in looks and build quality.

For high powered Class A amps I would go with various Clayton models. If you have high efficiency speakers the Coincidence Technology Frankenstein 8 watt/channel Class A amps are impossible to beat. Played with a number of Coincidences own speakers (such as the Pure Reference, Pure Reference Extreme's, & the Total Victory V's), the sound produced is exquisite.

Greg