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Old 6th April 2013, 11:07 AM   #1
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Join Date: May 2011
Default 10" woofer for outdoor application

Hi everyone!
I'm currently planning a construction of a cabinet for 2 x 10" woofers for an outdoor bass application. I would like to hear from you what you think about it.
I'm trying to find a high efficiency woofer that can go down to F3 = 50 Hz - 60Hz.
I'm currently using this SPA-10A/250NEO for my design. I have a 77 liter cabinet and it is tuned to 62,5 Hz. I think the response looks fine.
The VAS for the speaker is only 19 L so is the cabinet too large? I'm thinking of filling it with some dampening materials if that will help?
Another question: The datasheet says xmax of +/- 3 mm. Will that mean 6 mm in WinISD?
I've added some pictures form WinISD. There is added filters (2nd-order highpass @ 40 Hz + 2nd-order lowpass @ 400 Hz).

Thanks for your help,
Simon H.A.
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Old 6th April 2013, 01:57 PM   #2
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Join Date: Jan 2011
Since its for outdoors, I would suggest a cabinet that kind of shields the driver from the elements.
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Old 6th April 2013, 03:00 PM   #3
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What do you mean when saying "elements"?
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Old 6th April 2013, 03:08 PM   #4
Zero D is offline Zero D  United Kingdom
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Quote:
@ Shatronics

Another question: The datasheet says xmax of +/- 3 mm. Will that mean 6 mm in WinISD?
If you mean in the WinISD Driver Database, then no, it means Peak = 3mm. Peak to Peak = 6mm.

If you go to Options in your design, you can select to show between Peak/P-P/Rms by clicking where i've placed the arrow

Quote:
What do you mean when saying "elements"?
He means the weather, rain etc.
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Old 6th April 2013, 03:16 PM   #5
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Okay thanks. They are not going to constantly be outside, but some protection is added. I've changed the xmax now. But I'm still able to get almost the same response without breaking the xmax so that is good. Are there other drivers that you can recommend for my build?
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Old 6th April 2013, 03:56 PM   #6
Zero D is offline Zero D  United Kingdom
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Quote:
Are there other drivers that you can recommend for my build?
Sorry it's a while since i've designed 10" bass boxes ! Maybe others could help
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Old 6th April 2013, 04:08 PM   #7
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I also found a similar speaker from the same brand that performs a bit better at the same wattage, has a slightly higher SPL (WinISD comparison) and costs a third less

Here is a link: SPA-110PA
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