No need to leave amps on all the time, just turn them on for awhile before you are going to listen so they can warm up. How long that is you'll have to find out or take the advice of other owners.
I have a pair of Class A amps that use up 300 W each when not putting out any sound. Keeping them on all the time would make the electric meter spin like a kid's pinwheel toy and would also turn any room they were into into a sauna in summer.
I have a pair of Class A amps that use up 300 W each when not putting out any sound. Keeping them on all the time would make the electric meter spin like a kid's pinwheel toy and would also turn any room they were into into a sauna in summer.