Threshold/ What is the Stasis topolgy?

Thank you Ferrari. Forgive my ignorance, but, what is an optocoupler and what is VAS?

Wow! Ferrari very impressive find. Thanks for sharing. While I don't compleletly understand it all, it sure gives a pretty good idea of whats going on. Thanks again.

Ferrari, thank you again.

Marketing? This has been asked before and some how we can't seem to get a consistant answer. I think I remember some one suggesting that "statis" topology allowed class A/AB amps to stay in class A longer. While we're at it perhaps some one can explain "optical bias" too. I'm also curious as to why these big amplifiers seem to have some what limited current output. Do these amps "double down"? What ever technical merits these amps have or have not they sure seem to have earned legendary "status". People whom I respect sure seem to respect these amps. I sure would like the opportunity to hear "statis/optical bias" for myself.

David, I didn't know that the S/500 was capable of 45 ampres. Is that steady or peak? While that certainly seems adequate, it's not tremendous for a 250 watt per channel amp. To those in the know, such as yourself, it sure does seem to do the job.

Thank you to Whoaru99 too.