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In Reply to: Huge transformer and heat sinks aren't what make Class A posted by Feanor on July 25, 2014 at 05:50:59:
To make a reasonable amount of Class A power, it requires both big trafos and big heat sinks and/or forced air cooling. Even a modest 50 watts requires substantial amounts of both.
This sliding bias is and always was a kind of a gimmick unless the amp can sustain those bias levels for a significant amount of time (like the Krell Sustained Plateau bias schemes), which STILL requires big power supplies and heat sinks (again like Krell KSA-S series and FPB series and probably there newest stuff too).
This Cambridge may be 120 watts but it will never, ever achieve that in Class A without meltdown. It is for sure AB or even B by that power. I would give it max 15 watts in Class A before it moves over to AB or B.
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- RE: Huge transformer and heat sinks aren't what make Class A - morricab 15:27:17 07/25/14 (0)
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