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    help. my ed 15k and a ported box

    I just bought a ed 15k and i plan on putting it in my el camino behind the seats, I want too make a ported box and a drew up a diagram showing the space i have too work with, its 4 feet long in the direction you cant see. for some reason it wont attach my diagram so heres the url http://www.xbox-connection.com/hoste...paceforsub.jpg







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    Re: help. my ed 15k and a ported box

    could somone help me design a box? ive never done this before and am not sure what would be best.




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    Re: help. my ed 15k and a ported box

    i had a 3.8 cuft box ported to 33 hz for a while, it sounded nice but didn't doo too well on the higher end of things. how much power r u gonna be runnin to it?



    Car:'02 Nissan Xterra
    HU: Premier DEH-4400
    Comps: SPR-176A type-r 6.5's
    Comp amp: Zapco reference 200
    Sub:Re 15HC
    Sub amp: Hifonics Bx1000
    Box: 2.5 cuft sealed

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    Re: help. my ed 15k and a ported box

    Box size will most likely be dependent on the power your giving it (300-600 is a good range for the 15K) so get back to us...



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    Re: help. my ed 15k and a ported box

    I still havent bought an amp for it, but ill probably go with the jbl 600.1 would you reccomened somthing else? the sub is dual 2 ohm so ill be running it in parallel at 1ohm. im trying too keep the price on this system down, i got a set of boston acoustics 6.4 pro series components for free that i need to get an amp for and im planning on picking up one of those blaupunkt headunits on sale, either the san jose or the casablanca for around 100$.
    Last edited by tony7; 11-04-2003 at 08:41 PM.




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    Re: help. my ed 15k and a ported box

    A 4-channel amp will bring down costs, somewhat. Always check out the For Sale sections. And with a dual 2ohm sub you can wire it into 4ohms (which most 4channels allow you to do, using 2 of the 4 channels). That way you can also power your comps. Check out:

    www.ikesound.com
    www.thezeb.com

    Profiles are good for the price (around 100 for a 4channel)



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    Re: help. my ed 15k and a ported box

    yeah i could do that but i think im gonna just run 2 amps, but im still wondering about the box.




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    Re: help. my ed 15k and a ported box

    Awhile back I got an email from ED...

    "Hi Adam,

    Sealed is best used between 2.5-3.5 cu ft depending on the power you have. The more power, the smaller the box.

    Vented, I would reccomend 3.0-4.0 cu ft, with approximately 20sq in of ventarea, tuned to 30Hz or below. Again, the more juice you have, the smaller the enclosure should be."

    With the box you drew up I can help you out with the following. If you were going to be giving the sub 300 or less power do the 4cubes (making the lenght extend 25" = 4.15943 cuft)

    If you were giving the sub more power give the lenght 20" (which would make it 3.32755 cuft)

    Youve also got to subtract the displacement of the sub and the port. Also take into account the space the wood takes up. Is that diagram the largest space available?


    Usefull links
    http://www.the12volt.com/caraudio/boxcalcs.asp
    http://www.linearteam.dk/default.aspx?pageid=isdonline



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    Re: help. my ed 15k and a ported box

    yeah its an el camino so its like a truck cab, and thats the biggest space, behind the seats.




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    Re: help. my ed 15k and a ported box

    Before I design the box, do you have any idea how much power you will be sending the sub (less then 300, or more?)



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    Re: help. my ed 15k and a ported box

    more, around 600




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    Re: help. my ed 15k and a ported box

    Here's what your box will look like...


    And for a port do one that is either (these are PVC ports, circles):

    3" wide, and 4.845 long

    or

    4" wide, and 9.589 long

    either one, its all good. In theory you will have less port noise with the 4" wide one. But you (human ears) will not hear a difference, most likely...



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    Re: help. my ed 15k and a ported box

    PVC port.. exactly how is this done? i imagine you mean using a 4" wide, and 9.589 long pipe as a port but i dunno could you clarify?




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    Re: help. my ed 15k and a ported box

    Get PVC pipe that is 4" in diamater, and the length you said. Install it flush with the box, and that will give you your desired tuning freq.




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    Re: help. my ed 15k and a ported box

    And in your case all you would have to do is get a stright piece of pvc and make it vertical with the box. Cut a hole in the MDF (3" or 4" whichever one you get) and poke it thru the hole. Seal it up with some caulk and wala! Heres a pic...



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