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In the Forum: Horn-Loaded Speakers
In the Thread: Horn loaded ribbons and other Vasyachkin’s tangents....

Post Subject: RibbonsPosted by Vasyachkin on: 11/2/2008

i will give you this much - horn loading ribbons is fundamentally not as advantageous as horn loading dynamic drivers. this is because ribbon mass is already close to airload mass (in theory could even be less) and little extra efficiency can be extracted by means of an acoustical impedance transformer as the impedance is matched to begin with.

power handling however could be increased by making the ribbon thicker and then restoring the efficiency with a horn, but that would be ridiculous indeed - creating a problem and then solving it.

my ONLY motivation in horn-loading a ribbon is directivity control. perhaps i should have used the word waveguide instead of horn.

i would not use any kind of compression ratio. the horn could be almost a constant directivity or with some mild progressive rate of expansion. again it would not be used to boost any frequencies but merely to shape directivity.

you say that extra vertical dispersion is BAD. yes it is. but that entirely depends on what you call extra ? if you have 3 inches of vertical sweet spot at first and you expand it to 3 feet then i don't call this extra. i call this just enough.

the point is to be able to specify PRECISELY the size of sweet spot both vertically and horizontally and my configuration allows that. on top of this it allows for easy integration with any sort of a midrange horn due to similar geometry.

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