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Temperature vs THD+N

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#1 Dougman0988

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Posted 12 November 2013 - 11:44 AM

Hello everyone,

I am testing some amplifiers and wondering what a curve of temperature vs THD+N generally looks like?  Specifically, when an amplifier is "very hot" due to high output, would you expect THD+N to increase?



#2 joust


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Posted 13 November 2013 - 10:54 AM

In an analog amp, yes. This is power transistor territory.
With a BCA (ie. ITech, CTs) amp? Not sure... and probably very slight increase : the output devices are nearly always at the same temperature, idle (until sleep) or operating.