Posted by Wayne Parham [ 68.91.14.67 ] on January 09, 2005 at 04:20:15:
In Reply to: Re: Hi-Efficiency vs Lo-Efficiency Speakers posted by Earl Geddes on January 08, 2005 at 13:56:12:
Hi Earl,
I agree with you about directivity. I didn't mention it because while most high-efficiency speakers are (directional) horns, not all are.
About shorting rings, I'm not sure how they could reduce odd-order harmonics. I think that mechanical suspension movements and reduction of excursion reduce third-order though, so some of the better high-efficiency drivers probably have reduced third-order from improvements in that regard, in addition to reduced even-order distorton from the use of flux control rings.
Wayne
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