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» Termpro Audio Forum » Installer's Corner » SPL » See what your SPL is?

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Author Topic: See what your SPL is?
Zengo
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Member # 447

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I wrote some new software to figure what your db is. If you know your db then try it and see if you find any errors.

Download: http://pages.prodigy.net/nickwright/db.zip

Thanks,
Zengo

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Posts: 118 | From: Rogersville, AL 35652 | Registered: Sep 1999  | Report this post to a Moderator
capple
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Why you make me figure out my cone area? If your going to do all that math ask how many and what size woofer I got. Also to make thing even closer do we need to factor in ported or sealed. To me it looks to be a ported calculation. My spl is only 145db with 8 vega 10" woofers and 2 500aII's but sealed boxes and your progame calculated 153db. My girl friends car has 4 vega 10" ported one 500aII and she hits 141.5db and you progam came up with 143db. Just some thoughts. If that cone area thing could chang that would be a great inprovment.

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Capple
SPLnDB2
www.geocities.com/MotorCity/Flats/9916/

Posts: 346 | From: MN, USA <IMG SRC=http://fp.geocities.com/capple.geo/mazda/truck1t_100x75.JPG | Registered: May 1999  | Report this post to a Moderator
Mr. Lada
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It seems to be fairly accurate for calculating spl, although it may be slightly on the high side. Great program though

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Posts: 78 | From: Calgary, Alberta | Registered: Jun 1999  | Report this post to a Moderator
Zengo
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Member # 447

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Ok. If you can tell what the cone area of a 10, 12, etc. I will be glad to add it. Any thing else that needs any improvement?


Thanks,
Zengo

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Posts: 118 | From: Rogersville, AL 35652 | Registered: Sep 1999  | Report this post to a Moderator
JBSmooth
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To find the cone area of any sub all you do is multiply radius times radius times pie R squared. So if it was a 12" sub you would do- 6x6x3.14 There ya go!

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24 12's and a buttload of power!

Posts: 403 | From: Spokane Wa USA | Registered: Jun 1999  | Report this post to a Moderator
   

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