120 degree horizontal dispersion - can I have midrange that does it? - diyAudio
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Old 31st July 2016, 10:44 PM   #1
freddi is offline freddi  United States
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Default 120 degree horizontal dispersion - can I have midrange that does it?

just out of curiosity

Dynavox cone tweeter - horizontal dispersion with cardboard Karlson lens - the upper octave is the same 60 degrees off axis as on axis. An impedance equalizer or perhaps appropriate highpass would be needed to chop off the elevated area on the low end
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K-lens - basically wedge shaped cavity - some taper towards the top - a 2 inch fullrange might be used in a FAST configuration. I'm probably more interested in a K-midrange with 120 degree horizontal dispersion to mate with this tweeter arrangement - can it be done without active EQ?

I think my L.Cao F6 which extends to ~17KHz level on axis might make a nice K-mid but there ought to be (?) others less pricey. One of my F6 is currently in the Karlsonator6 prototype, whose aperture probably doesn't have a lot of dispersive effect in the high treble.

small fullrange which have evenly rising on-axis character are candidates for such applications.

What cavity aspect and depth do we want relative to the cone diameter and wavelengths of interest to be propagated ?
Lens
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Dynavox tweeter
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Last edited by freddi; 31st July 2016 at 10:47 PM.
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Old 2nd August 2016, 05:27 AM   #2
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Sounds like this one does.

Tectonic Elements TEBM35C10-4 Miniature BMR® Driver - Techtalk Speaker Building, Audio, Video Discussion Forum
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Old 2nd August 2016, 05:44 AM   #3
freddi is offline freddi  United States
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that is an interesting little driver - I'd like to have sensitivity at least around 95dB L. Cao's F6 is up there before any lens effect,
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