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Reload Thread: 4.2 ft^3 external aeroport box for L7 15 (pics)

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    4.2 ft^3 external aeroport box for L7 15 (pics)

    Just wanted to show my new box. It's not all the way done, still have to bolt in the threaded rod and run the speaker wire. Yeah I know, I got sloppy with the paint, oh well. 4.4 cubes before displacement and about 4.2 afterwards, tuned to around 35 hz. Tuning will be dropped if I'm not happy with it.
    Here you go





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    Re: 4.2 ft^3 external aeroport box for L7 15 (pics)

    hows it sound



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    Re: 4.2 ft^3 external aeroport box for L7 15 (pics)

    Quote Originally Posted by CJL View Post
    hows it sound
    I don't know yet, but I'm kind of staring at your avatar.




    Ben Hemp
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    Re: 4.2 ft^3 external aeroport box for L7 15 (pics)

    Looks good, no more coats of paint?



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    Re: 4.2 ft^3 external aeroport box for L7 15 (pics)

    You would be fine without bracing that box, it's teeney




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    Re: 4.2 ft^3 external aeroport box for L7 15 (pics)

    im wondering the advangages if an external aeroport setup?

    i know its easier to change the tuning, but does it sound different?




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    Re: 4.2 ft^3 external aeroport box for L7 15 (pics)

    Quote Originally Posted by iamamp3pimp View Post
    im wondering the advangages if an external aeroport setup?

    i know its easier to change the tuning, but does it sound different?
    Increases spl because there's less turbulance inside of the box.
    Last edited by Lakota; 11-10-2006 at 12:27 AM.




    Ben Hemp
    1992 GMC Sonoma Ext Cab NEW BUILD
    2008 MECA S1 KY State Champion, 151.0 dB
    2008 MECA S1 WorldChampion, 151.8 dB
    2010 MECA scores: 150.9 dB S2, 151.6 dB S3
    Refs: smd4life, Subst4nce, wccoug21, dacheatham, thegreatestpenn, jshak07

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    Re: 4.2 ft^3 external aeroport box for L7 15 (pics)

    cool. I knew that !!!!!!!!!!!!!!!!



    i heard it a few times. what method did u use to mount the port to the box?

    I always glass it.




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    Re: 4.2 ft^3 external aeroport box for L7 15 (pics)

    if they are precision ports...im sure he screwed them in and sealed them up with sealant.




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    Re: 4.2 ft^3 external aeroport box for L7 15 (pics)

    There's actually a piece of sheet metal inside, and the ports are screwed to the sheet metal instead of the mdf, it holds much better that way. There is weather stripping underneath of the port lip to help seal. There's also duct tape around the ports on the inside to make them smoother and seal it better. I'll show the internal pics when I'm done.




    Ben Hemp
    1992 GMC Sonoma Ext Cab NEW BUILD
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    Refs: smd4life, Subst4nce, wccoug21, dacheatham, thegreatestpenn, jshak07

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    Re: 4.2 ft^3 external aeroport box for L7 15 (pics)

    WOW you went overboard on mounting the ports! Silicon around the mounting lip and screws are more than enough. I had to take the ports out of my old boxes many times and after you unscrew it, you still have to silicon to deal with and it was a B*TCH to get off. It's very strong, took some MDF off of the box when I was pulling them out.

    And no, externals don't sound different than internals, at least to my ears.




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    Re: 4.2 ft^3 external aeroport box for L7 15 (pics)

    all i can say about external ports...my box get fuggin loud. but i havent had them internal. will have to build a box next spring with internal ports




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    Re: 4.2 ft^3 external aeroport box for L7 15 (pics)

    Quote Originally Posted by mikey060 View Post
    all i can say about external ports...my box get fuggin loud. but i havent had them internal. will have to build a box next spring with internal ports
    Yeah I'm hoping that it gets loud. I'm shooting for atleast a 145+ with this as my daily box. My spl box will be a bit different.




    Ben Hemp
    1992 GMC Sonoma Ext Cab NEW BUILD
    2008 MECA S1 KY State Champion, 151.0 dB
    2008 MECA S1 WorldChampion, 151.8 dB
    2010 MECA scores: 150.9 dB S2, 151.6 dB S3
    Refs: smd4life, Subst4nce, wccoug21, dacheatham, thegreatestpenn, jshak07

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    Re: 4.2 ft^3 external aeroport box for L7 15 (pics)

    maybe external ports are just for people too lazy to figure out port displacement



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    Re: 4.2 ft^3 external aeroport box for L7 15 (pics)

    Post some pics of the sheet metal.



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