Thanks to JA for Genesis Spectrum

The review of the Genesis 5.2 contains a spectrum which allows us a glimpse into the harmonic distortion characteristics of the speaker. It is only a glimpse, and the other speaker measurements in this issue do not have a spectrum for us, but I want to express my appreciation for a look at the behavior of even one speaker. I am espcially intrigued by the subharmonic output (the "halfth" harmonic?). I would be interested to know if the subharmonic is typical for this speaker over a range of frequencies, or only at selected frequencies.

January 23, 2006 - 8:58am

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Re: Thanks to JA for Genesis Spectrum

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I am especially intrigued by the subharmonic output (the "halfth" harmonic?). I would be interested to know if the subharmonic is typical for this speaker over a range of frequencies, or only at selected frequencies.

As I said in the review, the tweeter appears to be acting as a half-wave rectifier over a narrow band of frequencies -- 3-4kHz -- and it was difficult to hear on music because there was a hysteresis effect, in that the tweeter needed to be hit with a sustained high-level tone for about a second for the subharmonic to develop.

I have heard similar subharmonics with panel speakers.

John Atkinson
Editor, Stereophile

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