I don’t think there is any need to have a class A amp on permanently, after 15-30 min it should be 95% there sound vise, and after an hour I would not think it would get any better.
Should Class A Amps be left on??
Ok- Audiogon members need some advice here. Should Solid State Class A Amps be powered all the time? Have heard two school of thoughts on this. Apparently from what I have heard this is a moot question for Class A/B amps due to the usual low biasing of A/B Amps. From what I have been to learn so far Class A Amps should be left continously on.