Debate: Class D amps need 48 hours of warmup

No experience with class D amps but every Class A or A/B amplifier ever owned tube or solid state needed at least about an hour to sound its bes. As to Class D, I would think that you can just keep it on 24/7 no?

@erik_squires after an extended period of time unplugged the amp or dac or preamp takes longer I agree. At least 24 hrs. 

I’ve found that my NAD M33 Masters Integrated sounds tight, compressed, and thin for the first 30-45 minutes after it has had power turned “off” to it (at my ac filter/pdu).

My Krell K300i integrated only takes about 15min to warm up and sound better.

To be fair, I’m not sure it it is the amps or the rest of my chain that improves with a bit of warm up.   I’ve never experimented with removing power to just my amps.   It could also be partially due to my streamer and DAC warming up.

Every power amp I've owned has taken between an hour and two hours warmup to sound its best. Preamps longer.

@easystreamer Perfectly reasoned and stated!

MyLAIV Harmony GaNM sounds 100% after 5 minutes however I believe there are other components being used that also need some warm up time such as a tube preamp etc.