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Multi-Way Conventional loudspeakers with crossovers

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Old 12th August 2019, 06:26 AM   #441
Dave Zan is offline Dave Zan  Australia
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Join Date: Nov 2010
Quote:
Originally Posted by bwaslo View Post
Here's the discussion where Wayne describes his technique and effects --
Thanks Bill for the information, I expected that someone must have discussed this but I just hadn't seen it.

Quote:
Originally Posted by bwaslo View Post
(I don't know the particulars of the other Geddes models, but the Nathan is supposed his bottom of the line).
Yes, as I wrote, not his most expensive.
But his top-of-the-line is essentially similar but scaled up, 15" woofer rather than smaller (10" IIRC), wider horn/waveguide to match, scaled up cabinet volume too.
So the polars should be essentially similar too, just scaled.
Perhaps the top speaker can justify a more sophisticated crossover but I don't think there's too much difference.


My main point was that it is helpful to control the source width in the horizontal plane to control horizontal directivity, so why not do this in the vertical plane too?
So, rather than keep the woofer taps close to the horn vertically, it looks to me that it could be better to move them away some distance.
After all, a wider source is needed to maintain control of a narrower pattern, and that's the vertical in a typical speaker.
I didn't mean that it had to be specifically an "array" of point-like sources, woofer taps or whatever, it's a continuum.

Best wishes
David
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