Debate: Class D amps need 48 hours of warmup

Acutally asphalt cement is a form of highly viscous petroleum material that ranges from a liquid to a semi-solid depending on the temperature.  That is why it is mixed with aggregate and placed (paved) at high’ish temperatures.  That is also why poorly designed and placed asphalt concrete is susceptible to rutting on hot days when repeatedly loaded by heavy traffic.  It is graded so that different grades of the material can be used depending on the expected ambient temperature of where it will be used. 

Pavement made from asphalt (or bituminous concrete) is considered flexible while pavement made from Portland cement concrete is considered rigid.  They both have their pros and cons and like most things success requires proper design, construction, and materials selection for the intended purpose. 

I vote that asphalt jokes be allowed on Audiogon, but most of them are dumb.  BTW, asphalt believes in second chances—you can always patch things up. (sorry)

Atma-Sphere class D monoblocks here as well. I leave them on 24/7 and do seem to have a slightly better more lifelike sound compared to when I used to turn them off. I do wonder if it affects lifespan of the components inside though? @atmasphere 

In my outdoor system I have a Bluesound powernode which is also class D. It doesn’t have an off or standby mode. I figured if that’s stayed on for the past 4 years and still works fine, then the Atma-Sphere class D’s should be fine as well?

No warm up required IMO.

I do wonder if it affects lifespan of the components inside though?

@veerossi Not at all. 

Excellent. Thanks Ralph. I just want to say, love this setup. Using with Atma-Sphere MP-3.