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Old 9th March 2008, 08:45 PM   #1
ion is offline ion  Sweden
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Lightbulb Interesting OB speaker project

Stumbled on Steve Deckert's Zen Open Baffle project the other day. It features a fullrange on an Open Baffle along with a resonance chamber for bass augmentation.


Personally I find the simplicity compelling. Anyone tried to build anything similar?
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Old 9th March 2008, 09:37 PM   #2
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as you say, an interesting idea, but I think not so simple, difficult to get the tuning right and of limited application. When he talks about "the absolute purity of a single driver", - well, I think you'll get lower distortion by going 2 way, and if you're having to built a resonant chamber anyway, you're back to a BR enclosure, with solid bass....
Impedance varies with frequency, use impedance plots of your drivers and make crossover calculations using the actual impedance of the driver at the crossover frequency
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Old 10th March 2008, 11:39 AM   #3
Pano is offline Pano  United States
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I think it's interesting. Thanks for posting.

Would like to hear it.
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Old 11th March 2008, 12:45 AM   #4
ion is offline ion  Sweden
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Originally posted by panomaniac

Would like to hear it.
That makes two of us!
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Old 11th March 2008, 12:52 AM   #5
ion is offline ion  Sweden
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Default Some wild thoughts

Hmm, I wonder if the QM10 by GURU Loudspeakers ( uses a similar approach?

The QM10 have a 4" woofer and it is known to produce unbelievable potent bass for its size. (Some opinions : audioasylum , SonicFlare ,.. more on google)

I think I remember from an interview that the designer actually used the term "helmholtz resonator" rather than "vented/ported box". Just speculations... so far
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