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Reload Thread: Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

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    Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

    So, I was playing with Google Sketchup today, and came up with a vented box that fits under the seat of my 2003 silverado extended cab. Raked the subs in to protect them from wandering feet and to experiment with reflecting sound waves off of each other (any input?). Ports in the center over the floor hump. I just threw them in there, so they're not to size yet. Forward firing everything. I'm just waiting for my dad to get back from Phoenix with his laptop. I have a copy of Autodesk Inventor on it that I'll use to remake the box in. That way I can get perfect volume calculations and what-not. (macs suk for that reason)

    Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab-ported-8s.jpg







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    Re: Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

    Oh and if anyone has a good serial code for Bassbox 6 pro, I'd love you longtime.




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    Re: Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

    If anyone wants me to do a design for them, I'd be perfectly happy to.




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    Re: Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

    Do the ports to the sides if you have room



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    Re: Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

    Quote Originally Posted by ThatChevyGuy View Post
    Do the ports to the sides if you have room
    Is there a benefit? What effect does it have on gain and sound quality?




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    Re: Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

    heres Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab-img_0975.jpgDesign for two 8's in a vented enclosure - 1998-2007 silverado extended cab-img_0974.jpgmine for my 97.with these




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    Re: Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

    fire your ports toward the sides firing off the side/wall. ive noticed gains in every box doing that in my truck.



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    Re: Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

    Quote Originally Posted by Serpent710 View Post
    fire your ports toward the sides firing off the side/wall. ive noticed gains in every box doing that in my truck.
    Do I have to figure in some of the wall area as port area when tuning?




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    Re: Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

    aero port it



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    Re: Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

    Quote Originally Posted by ThatChevyGuy View Post
    aero port it
    i am next box i build for my truck




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    Re: Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

    I do a FAR less complex design. Its 2 separate boxes, subs and ports firing toward the sides, one box on each side of the transmission hump.
    Also, by doing 2 boxes you leave the transmission hump open to mount an amp under the seat.

    And this setup SLAMS. I tweak the boxs to work with whatever sub I'm using. Usually do Sundown SA8's, DD508's, or DD1508's. I just change the port area and tuning for each sub. The boxes range from 0.5-.7cuft net depending on the exact build.



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    Re: Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

    @Moble Enclosurs ; Hes design two seperate underseat boxes for me. SA v1.5s and now V2s, the box for 1.5s sounds amazing and the v2s im sure will be just as impressive.



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    Re: Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

    Well, I downloaded Autodesk on my Macbook, and am currently running it through Parallels. I remade the box and found out i have 2.53ish ft^3 of internal volume. Using that, I modeled the ports, and tuned the box to a hair under 32 hz.

    Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab-subboxrender.jpg

    Consruction is all 3/4" MDF except for the port walls which are 1/2"




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    Re: Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

    thats not what we meant by ports to the side


    Watch this

    http://youtu.be/cbIB5ng1FRo



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    Re: Design for two 8's in a vented enclosure - 1998-2007 silverado extended cab

    Quote Originally Posted by ThatChevyGuy View Post
    thats not what we meant by ports to the side


    Watch this

    4- Sundown Audio SA-8's - YouTube
    Haha, I know, I know. But I couldn't get the length and proper port size needed running them along the back of the box and out the side.




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