Hi Madfloyd, maybe I can help you, basically Gryphon Classe A Amps ( Colosseum and Mephisto ) are faster and more transparent than Pass Labs Class A Amps. Antileon are more warmer a bit colored and not so Clear like Colosseum and Mephisto. I could tell you Antileon is closer to Pass Labs than Colosseum and Mephisto. Till today Antilleon Amp can be ordered by special order, exactly to that costumers who prefer a most colored result.
In time, I'm not a Tube guy as Loyd is, so Colosseum and Mephisto are the two best Amplifiers I know Today. Mephisto is my Reference just like Pandora is my reference pre amp.
How do you compare the Mephisto v Colosseum and Colosseum v Antileon? I have done the latter comparison myself since i owned both...but never compared with Mephisto. I am told the difference between Colosseum and Antileon is much greater than the difference between Mephisto and Colosseum, but again i have never compared myself.
Thanks for any insight!