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Re: Good Response Soundmind.

> So if an amplifier sounds bad but measures good, it's good?

If an amplifier has inaudible distortion components then it has achieved what most would consider to be ideal in an audio amplifier.

If another amplifier with audible distortion sounds more pleasant then one needs to examine the purpose of the amplifier. I would suggest that most rational people would prefer to split the functions and use an amplifier with inaudible distortion plus a separate processor to introduce the distortion in a controlled manner.

> Thus, without weighting the upper order distortions, THD is
> meaningless.

THD has a very precise and well understood meaning. However, as with all integrated "figures of merit" it only conveys what it was intended to convey and that is the total harmonic distortion.

If you want an integrated "figure of merit" for another purpose then it is perfectly reasonable to derive one. What is not reasonable is to disparage a particular integrated "figure of merit" for not representing something that no reasonable person would expect it to represent in the first place.



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