They are quite difficult to find in the used market but they do appear from time to time, as Zlone said, check Hifishark.
Does the Gryphon Antileon EVO stereo amplifier go for sale on the used market?
I heard the Gryphon Essence with it's preamp at a stereo convention. It sounded so good. But it is crazy expensive. Also, I think I need more power which would lead me to the Gryphon Antileon EVO stereo amplifier. Does this ever go on sale on the used market? And what is the build quality of the Gryphons to where if you buy them used with the risk level?