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Cone area of a subwoofer

Discussion in 'Audio & Video' started by tacohead75, Jun 28, 2013.

  1. Jun 28, 2013 at 12:47 PM
    #1
    tacohead75

    tacohead75 [OP] Member

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    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
     
  2. Jun 29, 2013 at 5:57 PM
    #2
    pinktaco808

    pinktaco808 Hot Steppa

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    what about triangle and square and pentagon?
     
  3. Jul 2, 2013 at 11:24 AM
    #3
    shaneckc

    shaneckc Fyntünd Designs Vendor

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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.
     
  4. Jul 2, 2013 at 3:47 PM
    #4
    6spd

    6spd Well-Known Member

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    Does cone area circumference include the surround?
     
  5. Jul 7, 2013 at 3:35 PM
    #5
    shaneckc

    shaneckc Fyntünd Designs Vendor

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    No.
     

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