Karlson FR/Tweeter fun with a 3" LaVoce and cardboard lens

IMO. a K-tweeter for a little cone can work well with a shallow tapered chamber and thus something like a miniature K15 vs a klam arrangement. (One can certainly try both and I've not worked with the mini-klam enough to pass judgement)

A strong on-axis rise is highly desirable for acceptable result. The 3" LaVoce
I picked has about the strongest seen for that size and little money. Its a very well made driver too.

Anyhow, one might make a fullrange "flooder" of sorts with driver facing straight up and lens set on top. My cardboard cabinet has a couple feet of expansion, then choked at terminus, "balloons" from pressure. A more proper rear load and construction should help.

With an oval slot lens, sound was strident - with this happenstance K-lens, things are quite holographic with sounds such as fireplace "sparks" alive pretty far off axis.

It could be used with small back chamber as a tweeter.

LaVoce FSF030.70 3" Ferrite Full-Range Woofer 8 Ohm



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plus, if the little cavity and aperture were built into a flat front cabinet then there are possibilities of "FAST" types which would be fun too. Perhaps XRK971 could make a 2-way foam board cabinet with this little driver as the HF section,

Its really not shabby on its own but in a 2-way it and similar aperture/cavity should work well with say a 6" or 8" woofer.

You can see from its response curve (and low price) why its my choice for such an application as K-tweeter.


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here''s 120 degrees top octave horizontal dispersion from a smaller - earlier try for a Dynavox "phenolic-ring" tweeter.

Hopefully with help I can get a printed version for my LaVoce will have a removable back panel for an all in one Karlson tweeter module.


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