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    Re: Designing a ported box with George

    Quote Originally Posted by reed8857
    Did not mean to qoute you but what part of Warner Robins are you from as I am form there my self or are you AF
    I stay out towards Bryon. 96 is right behind me.


    oh and to Jmac thnx, but i am very smart. But I am just very impatient. I hate to proof read ****.



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    Re: Designing a ported box with George

    No kidding I am from Byron sort of thats where my parents live




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    Re: Designing a ported box with George

    Quote Originally Posted by reed8857
    No kidding I am from Byron sort of thats where my parents live
    oh ok nice



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  4. #34
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    Re: Designing a ported box with George

    Quote Originally Posted by LBX2G
    well i totally get what u are saying, But those guys compete. Most of the kids here just get daily setups. Soooo 2 2,000 watt amps will not do very well. I mean alternator upgrades are not fun, when i could have used the money for spinners. Like i said before i am not disageering just supporting george.


    the three boxes i speak of can also be used daily, and sometimes are...

    i understand where u're coming from, but a larger box doesn't necessarly mean better or louder. it's just something we need to get across...

    some subs do better in large boxes with big port area, others do better in smaller boxes with smaller port area...for example, i had a memphis pr10 in 1ft^3 vented, 6in^2 of port, tuned to 38 hz ran off 70wrms..this in an x-cab silverado...most ppl thought i had 2 10's and 250 watts....


    it is important to match the sub to the enclosure and the manufactorers have eliminated most of the guesswork on their products. are their designs perfect? no, but they usually are the best street beater box design for that sub.









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    Re: Designing a ported box with George

    How do u get AV.......



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    Re: Designing a ported box with George

    Quote Originally Posted by mrray13

    it is important to match the sub to the enclosure and the manufactorers have eliminated most of the guesswork on their products. are their designs perfect? no, but they usually are the best street beater box design for that sub.
    well what would you do if you had no recommened enclosure size, just a list of t/s parameters? could you find the size by the parameters?



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    Re: Designing a ported box with George

    Quote Originally Posted by mrray13
    the three boxes i speak of can also be used daily, and sometimes are...

    i understand where u're coming from, but a larger box doesn't necessarly mean better or louder. it's just something we need to get across...

    some subs do better in large boxes with big port area, others do better in smaller boxes with smaller port area...for example, i had a memphis pr10 in 1ft^3 vented, 6in^2 of port, tuned to 38 hz ran off 70wrms..this in an x-cab silverado...most ppl thought i had 2 10's and 250 watts....


    it is important to match the sub to the enclosure and the manufactorers have eliminated most of the guesswork on their products. are their designs perfect? no, but they usually are the best street beater box design for that sub.









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    u kno what i run that same sub. But i had an 12. I have cracked the dust cap. I kno the box is way to big...3cuft @ 45 hz....yeah i kno the guy from memphis told me that it was way to big. And i only got 145 watts going to it some ppl think it is 1 15 or 2 12s. and i have alot more space to presurize ( 1995 Jeep Grand cherokee). I not trying to argue but just supporting george. It make more sense to take up more room than to save an buy more equimpent.



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  8. #38
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    Re: Designing a ported box with George

    Quote Originally Posted by jellyfish420
    well what would you do if you had no recommened enclosure size, just a list of t/s parameters? could you find the size by the parameters?

    honestly, no, i couldn't.

    there are programs out there that can get u close, such as bb6p (which i use now) and winISD (which i used to use). but mostly, i asked around, here on the boards, ppl that i knew used that particular sub, stereo shops and customer tech. even if the company doesn't post/print a recommended enclosure, i'm sure they will help u with the basics.


    would i like to learn how? of course. but in this current world, unless ur building ur own sub or u've bought some off the wall brand, there are too many ppl and too many avenues to finding a recommended enclosure.


    case in point, i just built a box for a 15" orion h2. i have neither seen nor heard this sub. the website recommends 2.5ft^3..but after talking to ppl who have/are using this sub, the enclosure was built to 3ft^3. a lower tuning freq was used as was a larger port. in their experience, this was the best daily setup for sql.


    anyway, i'm rambling...lol






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  9. #39
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    Re: Designing a ported box with George

    Quote Originally Posted by LBX2G
    I not trying to argue but just supporting george. It make more sense to take up more room than to save an buy more equimpent.

    i know u're not arguing..it's all good. lol....


    and some ppl will agree with u..no problem. i'm not saying that that is incorrect. i'm just trying to get across that there are more then one side to this dilemma.


    depending on personal experience and opinion...u and i are both correct. it's all about how the person reading this wants to apply the info.







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    Quote Originally Posted by lilmaniac2
    Your circles look like something a HMO doctor would do to a **** job ....
    ^^^ speaking about cbfryman's jigsaw ability




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  10. #40
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    Re: Designing a ported box with George

    Quote Originally Posted by mrray13
    i know u're not arguing..it's all good. lol....


    and some ppl will agree with u..no problem. i'm not saying that that is incorrect. i'm just trying to get across that there are more then one side to this dilemma.


    depending on personal experience and opinion...u and i are both correct. it's all about how the person reading this wants to apply the info.







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    yup man but how do u like ur sound splinter subs.



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  11. #41
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    Re: Designing a ported box with George

    Quote Originally Posted by mrray13
    case in point, i just built a box for a 15" orion h2. i have neither seen nor heard this sub. the website recommends 2.5ft^3..but after talking to ppl who have/are using this sub, the enclosure was built to 3ft^3. a lower tuning freq was used as was a larger port. in their experience, this was the best daily setup for sql.
    3.5^3', 30^2" of port, 30Hz is what I would've done.




  12. #42
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    Re: Designing a ported box with George

    Quote Originally Posted by DeepMag1c
    How do u get AV.......
    just choose a port area. you want 60 square inches of port? your box is 15" high? then you make a port that is 15" high(internal) and 4" wide. i usually use something like 60 70 or 80^2 of port. more then one sub? add more port area.



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  13. #43
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    Re: Designing a ported box with George

    Quote Originally Posted by LBX2G
    yup man but how do u like ur sound splinter subs.

    i love the soundsplinter rl-p12 that is in my wife's car. which is running in 1.25ft^3 sealed off of a hifonics nemesis nx750d. it gets loud, low and stays clean. truely an awesome driver!!


    Quote Originally Posted by DBfan187
    3.5^3', 30^2" of port, 30Hz is what I would've done.
    after talking to denim and hccafan, the 3ft^3 was determined to be the best overall enclosure. however, the 30in^2 of port was also recommended (i did use 29in^2, long story) and tuning is in the 30-31hz range.








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    Quote Originally Posted by lilmaniac2
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  14. #44
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    Re: Designing a ported box with George

    well trying to figure out an spl box after my first step the physical Lv turned out to be like 213 for a 4cube box tuned to 40hz, lol back to the drawing board.



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    Re: Designing a ported box with George

    im gonna be making a box for my 2 12w0 in the near future. Its gonna be all 1 box with a divider so each sub will have about 2.3 cubic feet and its own port. the port legth is where i get the problem.

    my max width for the whole box is 40in and gonna be using 3/4 mdf with a divider so thats 37.75 internal width

    40 - 1.5 - .75(for divider)

    each sub

    width = 18.5
    height = 16.5

    port diameter = 5

    when i plug all the numbers into the pL formula i get like 81.3in. that seems a little big to me. so if some could tell me if that is correct and if not point me into the right direction i would really appreciate thanx.




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