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Old 30th January 2006, 08:16 AM   #1
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Default Need help with speaker using 3 Hi-Vi B3S's

It's a long story, but for purely cosmetic purposes I need to make a few speakers, each using 3 HiVi B3S drivers, and nothing else. Anybody have any good suggestions on how I can make that work and sound good? I obviously only want to run one of them all the way to the top octave, but I'm not as experienced with more complicated crossover systems.
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Old 30th January 2006, 08:32 AM   #2
cotdt is offline cotdt  United States
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I tried it... didn't work very well because the midbass is very distorted and bass is nonexistant. But pass 300hz it is an amazing driver, especially for the price. Consider it a midtweeter rather than a fullranger.
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Old 30th January 2006, 04:25 PM   #3
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Actually, I forgot to mention that I will be using them in a home theater setup with a subwoofer, with an active crossover probably set at 120hz, just to keep them out of that troublesome reigon.
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Old 30th January 2006, 04:27 PM   #4
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Did you use any filtering when you did it, like the notch filters that Zaphaudio recommends, or just straight?
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Old 30th January 2006, 04:29 PM   #5
cotdt is offline cotdt  United States
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Quote:
Originally posted by The Paulinator
Actually, I forgot to mention that I will be using them in a home theater setup with a subwoofer, with an active crossover probably set at 120hz, just to keep them out of that troublesome reigon.

OK, that will work. I thought you didn't have a sub
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Old 30th January 2006, 05:05 PM   #6
sreten is offline sreten  United Kingdom
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Hi,

the easiest way to use 3 drivers is to implement baffle
step compensation and crossover at the same time.

Two drivers in parallel are +6dB compared to one driver,
so use a simple 1st order series c/o, the frequency being
determined by baffle width.

so two drivers || for mid bass, one driver for mid & treble.

You'll also need the 8K notch filter for the mid/treble driver.

/sreten.
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