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RE: Class A amp keeps shutting down

"Funny thing about Class A amps is that they dissipate more heat at idle than at full power.
There is not a lot in it but the louder you play your music the cooler the amp runs."

So what you are asserting is, if our Belgian friend would like a cooler running amplifier, he should run it at near clipping all day long to keep the amplifier "cool." He could do this easily with a test CD like the Stereophile CD that has test tones. He could disconnect the speakers and use a dummy load for those times he is not using the amp and run it full output into the dummy load hour after hour to keep it cool.

Since this assertion is clearly counter-intuitive, I think it would be a great service to us all if you could describe to us in technical terms why a class A push pull amplifier draws LESS current when passing a signal and the lowest current draw when operating near clipping.


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