Debate: Class D amps need 48 hours of warmup

I have owned a variety of pretty good amps in Class A, Class AB, and Class D, but not tubed amps except for Lamm's hybrid M1.2 Reference (one tube each).  Of the amps I enjoyed having in my system, they all sounded pretty good within a few minutes of powering up and good enough that warmup was never a consideration after they had been playing music for about 30 minutes.  If I couldn't ignore the gear and enjoy the music after 30 minutes, I would question whether I actually liked the sound of the amps in the first place.

When I had Class D amps, and with my current my Class AB amps, I rarely turn them off except for thunderstorms, vacations, and long weekends away from home.  I did turn off my Clayton M300 Class A monos most days, and those are the amps I owned that probably benefitted most from warmup but still, 30 minutes or less and I wasn't thinking about warmup.

They run cool anyway so the point is moot.

Interesting. I literally just powered up my Class D’s mono blocks after turning them off on Thursday. (Was gone all weekend) And usually never turn them off.

I notice no difference  

My Marantz PM10 stays on 24/7.  Although I can't say it sounded any different when it was first turned on after being off and unplugged for the best part of 6 months when we first arrived at our second home.  It just sounds good even in comparison to my much more expensive Class A tube main system.

At my age I can't hear the difference. I never leave my systems turned on at all times. If the you live it Cali don't let the Governor know this fact or you will be in BIG TR....killing our environment, shame on you.