I have heard none of these. I have heard the Ypsilon Set Ultimate 100's and they were amazing.,For $130000 for the pair they would want to be. Another amp I love is The Gryphon Anthillion Evo. Only around $50000.... cheap lol. But it walks the line so well between ultimate speaker control and otherworldly midrange insight. I play at a fair lower level with amps like the Onkyo M608 and Luxman M03 but these are fine. Some ultra fi is getting way beyond a joke in price today really.
Price No Object Amps
Just posting for human interest/curiosity purposes. I wouldn't suppose anyone on AGON has one of these, however, from a sonic performance perspective, which would you choose?
https://www.whathifi.com/features/10-worlds-most-expensive-stereo-amplifiers?utm_medium=EMAIL&ut...
https://www.whathifi.com/features/10-worlds-most-expensive-stereo-amplifiers?utm_medium=EMAIL&ut...