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Cone area of a subwoofer

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Old 06-28-2013, 12:47 PM   #1
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Cone area of a subwoofer

Interesting for those who wanna know what 4 speakers equal to 2 speakers etc.


How to calculate cone area
Cone area = pi x (r x r)
pi = 3.14 r = radius of sub

One 8" = 50.27
One 10" = 78.54
One 12" = 113.1
One 15" = 176.71
One 18" = 254.47

Two 8" = 100.53
Two 10" = 157.08
Two 12" = 226.19
Two 15" = 353.43
Two 18" = 508.94

Three 8" = 150.8
Three 10" = 235.62
Three 12" = 339.29
Three 15" = 530.14
Three 18" = 763.41

Four 8" = 201.06
Four 10" = 314.16
Four 12" = 452.39
Four 15" = 706.86
Four 18" = 1017.87
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Old 06-29-2013, 05:57 PM   #2
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what about triangle and square and pentagon?
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Old 07-02-2013, 11:24 AM   #3
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That's good for a general reference, I suppose. But the radius/diameter of most sub woofers cone area is not equal to their nominal size. For instance, my JL 10w6v3's have an effective cone area of only 49.3 square inches for each 10" woofer.
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Old 07-02-2013, 03:47 PM   #4
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Does cone area circumference include the surround?
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Old 07-07-2013, 03:35 PM   #5
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Quote:
Originally Posted by 6spd View Post
Does cone area circumference include the surround?
No.
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