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Reload Thread: how to find port area need help asap

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    81chevystep's Avatar
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    how to find port area need help asap

    i need to know the equation for finding the port area asap please

    thanks guys







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    azimuth's Avatar
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    Re: how to find port area need help asap

    for slot ports, 12-16 square inches per square foot of box space.






    2003 chevy s-10 ext. cab
    hu: jvc kd-avx1
    precision power 356cs components
    front amp: infinity 475a
    sub: diamond audio d6 10d4
    enclosure: 1.1 cubes ported tuned @ 31hz
    sub amp: JL G1700

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    Re: how to find port area need help asap

    i know that but i need an equation to find the port area of a port cuase i need to get 132 sq*2 inches of port area at 35 hz for an 8 cube box net

    thanks




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    Re: how to find port area need help asap

    Quote Originally Posted by 81chevystep View Post
    i know that but i need an equation to find the port area of a port cuase i need to get 132 sq*2 inches of port area at 35 hz for an 8 cube box net

    thanks
    wow....its width X height= port area



    Quote Originally Posted by chase007 View Post
    if u need a box...I'l taked 3 years of shop class so i know what im doing.

    after i explained to him there's more to a proper box than boards and glue and he should practice before trying to sell boxes to others

    Quote Originally Posted by chase007 View Post
    yes personaly if it was some one elce that just starting making boxes but i'v taken shop for 3 years now...Making a lil box is nothing i don't need to pratice on a box to get it right i learned alot of stuff from 1 box and i can fix that in my next box
    after i told him that customers would care about the looks of the box

    Quote Originally Posted by chase007 View Post
    if u want some thing that looks pretty why don't u find a black guy with a big d*ck.

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    Re: how to find port area need help asap

    i was wondering this to.

    bonesninja, so if the height is 14" and the width is 3 1/2" it would be 14x3 1/2=49 so it would be 49 sq*2 of port?




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    Re: how to find port area need help asap

    Quote Originally Posted by gattaluvdatBASS View Post
    i was wondering this to.

    bonesninja, so if the height is 14" and the width is 3 1/2" it would be 14x3 1/2=49 so it would be 49 sq*2 of port?
    bingo



    Quote Originally Posted by chase007 View Post
    if u need a box...I'l taked 3 years of shop class so i know what im doing.

    after i explained to him there's more to a proper box than boards and glue and he should practice before trying to sell boxes to others

    Quote Originally Posted by chase007 View Post
    yes personaly if it was some one elce that just starting making boxes but i'v taken shop for 3 years now...Making a lil box is nothing i don't need to pratice on a box to get it right i learned alot of stuff from 1 box and i can fix that in my next box
    after i told him that customers would care about the looks of the box

    Quote Originally Posted by chase007 View Post
    if u want some thing that looks pretty why don't u find a black guy with a big d*ck.

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    azimuth's Avatar
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    Re: how to find port area need help asap

    Quote Originally Posted by gattaluvdatBASS View Post
    i was wondering this to.

    bonesninja, so if the height is 14" and the width is 3 1/2" it would be 14x3 1/2=49 so it would be 49 sq*2 of port?
    yep. you need to do more like 8 inches wide to get your desired port area. even though you really only need 100-120 sq. inches or so with that box, for a daily driver.






    2003 chevy s-10 ext. cab
    hu: jvc kd-avx1
    precision power 356cs components
    front amp: infinity 475a
    sub: diamond audio d6 10d4
    enclosure: 1.1 cubes ported tuned @ 31hz
    sub amp: JL G1700

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    Re: how to find port area need help asap

    Quote Originally Posted by kcdc30 View Post
    yep. you need to do more like 8 inches wide to get your desired port area. even though you really only need 100-120 sq. inches or so with that box, for a daily driver.
    he's not the OP.....but the OP's question is pretty unclear, i think he might be looking for the actual length not the port area. Quick calc's tell me he needs around 27 inches port length for 35 hertz in an 8 cube net box



    Quote Originally Posted by chase007 View Post
    if u need a box...I'l taked 3 years of shop class so i know what im doing.

    after i explained to him there's more to a proper box than boards and glue and he should practice before trying to sell boxes to others

    Quote Originally Posted by chase007 View Post
    yes personaly if it was some one elce that just starting making boxes but i'v taken shop for 3 years now...Making a lil box is nothing i don't need to pratice on a box to get it right i learned alot of stuff from 1 box and i can fix that in my next box
    after i told him that customers would care about the looks of the box

    Quote Originally Posted by chase007 View Post
    if u want some thing that looks pretty why don't u find a black guy with a big d*ck.

  9. #9
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    Re: how to find port area need help asap

    Quote Originally Posted by bonesninja View Post
    he's not the OP.....but the OP's question is pretty unclear, i think he might be looking for the actual length not the port area. Quick calc's tell me he needs around 27 inches port length for 35 hertz in an 8 cube box
    i was agreeing with him by saying "yep", the rest was to the op.






    2003 chevy s-10 ext. cab
    hu: jvc kd-avx1
    precision power 356cs components
    front amp: infinity 475a
    sub: diamond audio d6 10d4
    enclosure: 1.1 cubes ported tuned @ 31hz
    sub amp: JL G1700

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    Re: how to find port area need help asap

    Quote Originally Posted by kcdc30 View Post
    i was agreeing with him by saying "yep", the rest was to the op.
    my bad son



    Quote Originally Posted by chase007 View Post
    if u need a box...I'l taked 3 years of shop class so i know what im doing.

    after i explained to him there's more to a proper box than boards and glue and he should practice before trying to sell boxes to others

    Quote Originally Posted by chase007 View Post
    yes personaly if it was some one elce that just starting making boxes but i'v taken shop for 3 years now...Making a lil box is nothing i don't need to pratice on a box to get it right i learned alot of stuff from 1 box and i can fix that in my next box
    after i told him that customers would care about the looks of the box

    Quote Originally Posted by chase007 View Post
    if u want some thing that looks pretty why don't u find a black guy with a big d*ck.

  11. #11
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    Re: how to find port area need help asap

    dont include the port in the volume. if your port is 8"x14"x X"L, then you need to figure out the overall displacement using external dimensions of the port. then subtract that from the net volume of the box (using the boxes internal dimensions).

    i always figure out the box size i want, then the port i need for that box, then build the box that much bigger to accomodate the port and the volume it takes up.




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    azimuth's Avatar
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    Re: how to find port area need help asap

    Quote Originally Posted by bonesninja View Post
    he's not the OP.....but the OP's question is pretty unclear, i think he might be looking for the actual length not the port area. Quick calc's tell me he needs around 27 inches port length for 35 hertz in an 8 cube net box
    maybe so, but he needs alot more port area than that for 8 cubes either way.






    2003 chevy s-10 ext. cab
    hu: jvc kd-avx1
    precision power 356cs components
    front amp: infinity 475a
    sub: diamond audio d6 10d4
    enclosure: 1.1 cubes ported tuned @ 31hz
    sub amp: JL G1700

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    Re: how to find port area need help asap

    and someone needs the tuning curve chart. if you want to use round ports, here you go.

    http://www.car-fi.com/techcenter/vent6.htm




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    Re: how to find port area need help asap

    Quote Originally Posted by kcdc30 View Post
    maybe so, but he needs alot more port area than that for 8 cubes either way.
    i just answered his question, it seems as if he know exactly what he wants already....and that port area is fine for an 8 cube box



    Quote Originally Posted by chase007 View Post
    if u need a box...I'l taked 3 years of shop class so i know what im doing.

    after i explained to him there's more to a proper box than boards and glue and he should practice before trying to sell boxes to others

    Quote Originally Posted by chase007 View Post
    yes personaly if it was some one elce that just starting making boxes but i'v taken shop for 3 years now...Making a lil box is nothing i don't need to pratice on a box to get it right i learned alot of stuff from 1 box and i can fix that in my next box
    after i told him that customers would care about the looks of the box

    Quote Originally Posted by chase007 View Post
    if u want some thing that looks pretty why don't u find a black guy with a big d*ck.

  15. #15
    bonesninja's Avatar
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    Re: how to find port area need help asap

    Quote Originally Posted by crawlinYJ View Post
    and someone needs the tuning curve chart. if you want to use round ports, here you go.

    http://www.car-fi.com/techcenter/vent6.htm
    maybe he wanted a slot port



    Quote Originally Posted by chase007 View Post
    if u need a box...I'l taked 3 years of shop class so i know what im doing.

    after i explained to him there's more to a proper box than boards and glue and he should practice before trying to sell boxes to others

    Quote Originally Posted by chase007 View Post
    yes personaly if it was some one elce that just starting making boxes but i'v taken shop for 3 years now...Making a lil box is nothing i don't need to pratice on a box to get it right i learned alot of stuff from 1 box and i can fix that in my next box
    after i told him that customers would care about the looks of the box

    Quote Originally Posted by chase007 View Post
    if u want some thing that looks pretty why don't u find a black guy with a big d*ck.

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