Sorry to dig up this old thread, just wanted to clarify some incorrect information on the Gryphon Antileon.
A Gryphon Antileon does NOT run a "5W bias" in any of the available settings. It’s 50/75/100% Class A but not 5W. I’ve measured an Antileon Mk2 (just before the Signature came out) power draw myself at 450W@50% and 850W@100% bias settings. Measured at ~227VAC.
Heastink temp was about 50*C vs 63*C. Hot, very hot and unusable in the summer without AC unless you like expensive recapping every couple of years and the smell of hot metal and electronics in your listening room.😃
I honestly doubt the Antileon Signature is any different in terms of bias. The "Green Bias" feature only switches through the 3 bias settings based on volume level of the matching Gryphon preamp, nothing fancy here. An ASR Emitter does a similar thing but with it’s power supplies.
