What Would Be the Reasoning Behind Leaving Class D Amps On?

A stiff back would be a reason to leave them on.
To replace a yoga class would be a reason to bend over to turn them on.

I'm super curious about this stuff.

Ok then,,, just try it both ways for a month. You’ll get people that swear upon stacks of holy books that it makes a difference. And others that don’t.

(Personally - I doubt it matters)

And they use such little energy that if you left them on all weekend I would not feel guilty about things like the climate… so you could power them off M-Th and leave them on Friday through Sunday… there are no hard-n-fast rules.

The associated components stay fully charged and ready to rumble, just like any other solid state device.  Every solid state piece in my rack stays on unless I am leaving for an extended period of time.

I has a similar question, but for a reason other that audio quality. It is specific to McIntosh: since the front panel is illuminated (even when there is no VU), will keeping it always on risk of burning the front green lights?

@mrskeptic , good point, but there are many here who know a good bit about amp topology, engineering and so on.  

Maybe this site is too subjective for you?  Have you tried AudioScienceReview?  That's a special place over there. $500 Topping amps that measure better than D'Agostino are gospel because of their objective stats. 😏

I may need to restate my original point. While sure, I leave on my DAC, in terms of amplifiers, no solid state amp I’ve never owned takes as long to warm up as my Class D amps. It’s not even close. My A/B amps have taken no more than an hour while D takes days. You don’t even have to play music. Just leave them on.

Good thing each monoblock idles at about 5 watts!

What's funny is how some of these conversations develop on A'gon:

Poster:  I came back home and my system sounds like crap and I don't know why, help!

Me:  Are you using class D amps?

Poster:  How did you know?

Best,

Erik