@pmm +1! If Class AB they can run 24/7. Power supply caps will stay warm and nicely formed. Class A amps that run hot should be turned off when unused.
Leaving my amplifier on ok?
Would it be ok to leave my amplifier on all the time if I want to extend the reliability of the amp? Many amplifiers ar Class A, high current bias and tubes might be a problem if energy consumption is a factor. Not to mention Excessive heat from bias operation. Is it possible to extend the life of the amp with leaving it on all the time?