Get a class D anp. They use practicality no power. I leave mine turned on all the time.
Man I just felt mine off ( dont judge me) and it was still warm.
I use a Fosi Audio and yea, it gets slightly warm. I measured the power consumption when there is no signal and it's right at 1 watt. When it's at high volume I get an average of 4 watts. I decided it's not worth turning it on and off with that kind of consumption.
It replaced a power hungry class A amp that had a 2Kw power supply. Just turning that sucker on dimmed my lights as the caps charged. At idle, that amp drew a modest 100 watts.
Sure, my old class A 100lb behemoth sounded slightly better in that it could belt out a lot of bass with little distortion. But it was big, got very hot and heavy. My class D amp is about the size of a pack of cigarettes, gets slightly warm so I stuff it inside a cabinet where you don't see it. I'm not going back to class A, A/B again.
"But meh audiophile quality!!!!11"
A class D amp is basically like a modern switching power supply, highly efficient and only delivering power when something is happening. Class A/B uses the most power when silent, due to the push-pull stage.
I have some desk monitor speakers with a medium-sized heatsink and have them on when the PC is on. Put it all on a power strip (monitor, speakers, USB hub) and turn it off when you're done.
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