wide (120 degree horizontal) dispersion through "lens" ?
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| Posted on July 31, 2016 at 15:54:15 | ||
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Posts: 3852
Joined: December 6, 2001 |
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  tweeter K-lens - basically a 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 ? which cone drivers might be appropriate to carry the midrange? other lens shape suggestions are welcomed I'd just like to hear a 2-way or 3 way made this way ;^) Lens  Dynavox tweeter 
Karlson Evangelist
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| RE: wide (120 degree horizontal) dispersion through "lens" ?, posted on July 31, 2016 at 16:59:53 | |
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Posts: 2519
Location: Brussels Joined: April 27, 2010 |
That Dynavox tweeter looks so JBL-ish :)
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