Speaker's harmonics - against what? - anli

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Speaker's harmonics - against what?

Good speaker's datasheets, along with frequency response, supply
distortions (mostly second and third harmonics) curves. Does anybody
know how does "zero level" for these curves is defined? I see two
opportunities:
- "zero db" level is sensitivity at the same frequency,
- it is some kind of "normalized" level, which doesn't depend
on frequency (for example, from main speaker's parameters table).
Are there any official recomendations? Is there de-facto standard?

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Topic - Speaker's harmonics - against what? - anli 16:26:06 09/20/06 (2)

Re: Speaker's harmonics - against what? - anli 02:54:30 09/24/06 (0)

Re: Speaker's harmonics - against what? - gymwear5@hotmail.com 20:37:10 09/23/06 (0)

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