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It is curious to me that finding distortion measurements for speakers - audiophile-quality speaker, even (especially) very expensive speakers - is so hard.
Stereophile doesn't do it anymore.
But they used to. Thanks to that, I know that my restored Quad 63s are among the lowest-distortion transducers extant - ..."0.1% THD or less over most of the audioband!"
https://www.stereophile.com/content/quad-reference-esl-2805-loudspeaker-measurements
It turns out that almost NO dynamic speakers can compete with such low distortion levels (which probably explains the dearth of published measurements, actually).
ATC is one of the very few that can - a boon of both being actively-driven and their incredible proprietary drivers, probably:
https://www.hifinews.com/content/atc-scm100se-loudspeaker-lab-report
Some of the pricey Wilsons will do this too - sub .1% in the midband. I'd guess that YG, Magico, etc., are in the same area.
All of those dynamics speakers are far more expensive than the Quads, though.
That brings me to the actual subject here: How do the best wideband drivers compete (in the midrange, especially)? Lowther, Voxativ, etc.?
I'm well aware that widebanders in general tend to exhibit rising response, and breakup modes that must produce very high distortion, and that those with whizzers have addition issues with reflections and phase shift. But, what is, say, the typical THD at 1 Khz & 90 dB?
I did find one set of measurements for a Voxativ speaker. See the image. Can someone translate those dB figures into % THD?
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Topic - Wideband Driver Distortion - PaulF70 14:39:10 03/02/25 (2)
- RE: Wideband Driver Distortion - PaulF70 17:02:19 03/02/25 (1)
- RE: Wideband Driver Distortion - seancuster71@gmail.com 13:15:07 03/03/25 (0)
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