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This sounds like a variation of the QUAD "current dumping" amp topology

There are two amps: a high power but lower accuracy amp and a low power but very hi accuracy amp. The low power amp is driven with a correction signal and it's output is added to the output of the high power amp such that the combined output is as precise as that of the low power amp alone. Or something like that. I've heard it described as a form of feed-forward.



Edits: 03/31/22

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  • This sounds like a variation of the QUAD "current dumping" amp topology - Steve O 10:41:06 03/31/22 (4)

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