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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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In Reply to: I need a bass solution for 30-250 hertz, what are my options? posted by Russ57 on April 2, 2007 at 15:30:56:
Relatively few prosound woofers will give you honest 30 Hz extension in a reflex cabinet without significant boundary reinforcement from nearby walls, and I can't think of any that would even come close in a sealed box.About a year ago I was working on a speaker that would go down to 30 Hz ballpark in a large vented box using a prosound woofer. The woofer that seemed best suited to the task was the Usher 15" PA woofer. It worked great in the bottom end; trouble was I wanted to cross over at a minimum of 1 kHz. I found that up that high, the midrange was less articulate than what I could get with a prosound woofer having a shorting ring in the motor structure (which the Usher didn't have). But down around 250 Hz, I don't think there would be any audible consequence from not having a shorting ring. In fact, a 600 Hz crossover worked fine on the woofer's side - but my horn wouldn't go that low. The project is on a back burner for now as I'm barking up other trees.
So anyway my suggestion is the Usher 15" PA woofer in a vented box. In a 300 liter enclosure tuned to 30 Hz, it gives you an honest -3 dB at 30 Hz. My recommendation would be tune to 27 Hz as that's the lowest fundamental of normal orchestral instruments, and if possible bump the box size up closer to 350 liters.
Duke
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Follow Ups
- Re: I need a bass solution for 30-250 hertz, what are my options? - Duke 22:22:53 04/03/07 (3)
- BTW - Russ57 04:33:18 04/04/07 (2)
- Re: BTW - Duke 09:54:38 04/04/07 (1)
- Dang, I was hoping for an unbiased review of how they stacked up - Russ57 10:15:05 04/04/07 (0)
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