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Reload Thread: 27 hz slot box 2 tempest 15 revisit corection

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    27 hz slot box 2 tempest 15 revisit corection

    port area
    using 12 in^2/ ft^3 = 96in^2

    port height 24 inches x 4 inches = 96 in^2

    net vol 8 ft^3 , tuned to 27 hz

    Lv= 96in^2 * 1.84 x 10^8 / 8.00ft^3 *1728 (27/.159)^2 - (.823 * sqrt96)
    Lv=36.25in long

    port displacement

    12.75 * 21.5 * 4.75 = 1453.5
    20*24*4.75= 2280
    total= 2.1606 ft^3 + 8.00ft^3 + .353 (sub displacement) = 10.5136ft^3

    Iv= 24H x 20D x 37.84896 (rounded to 38 W)

    ED 25.5H x 21.5 D x 39.5W
    how bout it Jmac i think i got it this time
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    Re: 27 hz slot box 2 tempest 15 revisit corection

    woops sure is 1302.09 but that ain't no big i got the set up now so it's nothing but changing some nubers




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    Re: 27 hz slot box 2 tempest 15 revisit corection

    yeah i just looked at my paper copy i put the wrong middle figure but the right aswer so it should be 12.75 * * 24 * 4.75 = 1453.5

    btw winisd on this box looks pretty good pretty flat

    Nat




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    Re: 27 hz slot box 2 tempest 15 revisit corection

    yeah i got about the same peaks on winsd no not very flat compared to the sealed box i drew up along with it petty good.

    i think i am going to go with the sealed box in my truck any way though it's a good bit softer but VERY flat but does drop off a good bit below about 40 hz




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