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Old 24th May 2011, 09:05 AM   #1
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Default Cambridge Audio 740A topology

anyone knows what is the topology of this amp ? is it a gainclone ?
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Old 24th May 2011, 09:18 AM   #2
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Take the lid off and have a look.
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Old 24th May 2011, 09:35 AM   #3
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I can itīs still under warranty for the next 4 months , i only know the topology is similar to the 640A
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Old 24th May 2011, 10:39 AM   #4
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640A is not a gainclone, it is a version of the "blameless" amplifier developed by Douglas Self and uses discrete bipolar transistors throughout.
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Old 24th May 2011, 02:51 PM   #5
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I guess that means itīs a good amplifier ? i read god and bad things about " blameless " amplifiers.
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Old 27th June 2011, 07:32 AM   #6
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It's subjective. The concept of the blameless amplifier is the systematic design approach to minimize measurable distortion, particularly in the three stage amplifier topology, to the level determined by the components and physics, not design choices - hence it is "blameless", not "perfect". Whether this results in pleasing sound is a different issue.
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