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In the Forum: Horn-Loaded Speakers
In the Thread: 45Hz Bass Horn
Post Subject: Bass horn resonance... & fruitPosted by jessie.dazzle on: 11/19/2008
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Wow, 6 x 15" drivers (!!!); though the curved profile certainly imparts rigidity, I'm guessing this horn must resonate more than a bit (no bracing until the mouth) -- but I like this thing.

Interesting, the phase plug-like device in the center.

If ever traveling near these people I will definitely try to arrange a demo.

About the idea of harnessing and trying to "tune" resonances... It reminds me of the "argument" that a flexible automotive chassis has merits (yes, perfect if you wish to "confuse" the suspension and fatigue the occupants! Never mind, I'm starting to sweat). I know, horns are not cars; apples and oranges etc.

In any case, my instincts tell me that energy would be more properly channeled by allowing the excited medium in the horn (the air) to "work off of" a solid foundation (Ever stand on the top rung of a ladder and try to hammer in a 10-penny nail?). Also, I don't like the idea of a driver working in the presence of a secondary source of excitement, regardless of its phase; in this case, air in the horn re-excited by resonating walls, causing pressure to feed back to the driver (An exaggeraton : The pulsating pressure one feels when speaking into the rear of a fan) But this all just theory.

Though I may be wrong, this is why I went the other rout and used a material that is really dead and heavy with loads of bracing.

jd*

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