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    keep_hope_alive's Avatar
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    Concrete SPL build

    I am building an SPL setup for a friend. I have the plan and physics will dictate all dimensions. I will share the build process, of course.

    End goal will be four Massive N2's and pair of Fi 18's in a mid 90's Astro Van. Will form a wall with two separate enclosures at the C-pillars to retain 4 seats.

    First is a single sub on a single amp.

    The enclosure will be 3" of concrete. I know how I am going to build the forms with 3/4" OSB.

    The first step will have the enclosure facing back, loading off a concrete "L".

    The suspension will be reinforced. the enclosure will be rigidly secured to the vehicle. Roof and doors will also end up being reinforced.

    Will be vented with a removable plug for SPL and run sealed for daily. Will use processing for the two modes.

    Any comments/experience from you with concrete builds is welcome.

    This will be fun.



    have you been helped by me? i'd love to know. shoot me a PM.

    *My 2001 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html]
    *2005 Scion tC Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/516096-2005-scion-tc-sq-hertz-audison-pioneer-build-log.html
    *1998 Astro Van Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/567468-kha-does-spl-build-1996-astro-van.html

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    Re: Concrete SPL build

    In for badassness



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    Re: Concrete SPL build

    Tuned in for sure! You always give enough pics to explain everything properly and thoroughly, thus insuring I learn something. Plus I fap to a couple, sorry, nature of the game.



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    Re: Concrete SPL build

    He has a good Clarion HU, Jl C5 comps, and the comps will be amped. Goal will be daily SQ. some local shops use a TermLab in the pass dash corner for local comps, but I'll refer to other rule books to determine classes ahead of time.



    have you been helped by me? i'd love to know. shoot me a PM.

    *My 2001 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html]
    *2005 Scion tC Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/516096-2005-scion-tc-sq-hertz-audison-pioneer-build-log.html
    *1998 Astro Van Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/567468-kha-does-spl-build-1996-astro-van.html

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    Re: Concrete SPL build

    What is he doing for suspension, it has to weigh a ton, literally.




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    Re: Concrete SPL build

    Final weight is a concern, and the type of concrete mix will be chosen based on final design weight... But we live near Iowa, so if it can haul six Iowans around, it can haul some concrete...



    have you been helped by me? i'd love to know. shoot me a PM.

    *My 2001 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html]
    *2005 Scion tC Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/516096-2005-scion-tc-sq-hertz-audison-pioneer-build-log.html
    *1998 Astro Van Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/567468-kha-does-spl-build-1996-astro-van.html

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    Re: Concrete SPL build

    i talked tto you on the phone about this. cant wait to see it _




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    Re: Concrete SPL build

    Why are you going with a 3" thickness, with a good portland cement you should be able to pour a VERY dense rigid enclosure and not have to go beyond 1.5" in thickness also portland has a very tight structure to it after it has set-up, it's usaually mixed with sand to change it's consistency but I would use as little of that as possible.



    electrical: Optima yellow top, big 3 in stinger 1/0g
    HU: JVC AVX-77 touch screen
    Front stage: RE XXX 6.5" comps
    front stage amp: Rockford T600.2
    subs: 2 Rockford T1 12's,
    sub amp: Rockford T1500.1BDCP
    Enclosure: center port(designed&built by JayDubb757)

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    Re: Concrete SPL build

    I agree thickness can be varied based on cement used. Which affects other variables. Thinner with higher density can weigh the same... But something I will consider. That's the input I am looking for.



    have you been helped by me? i'd love to know. shoot me a PM.

    *My 2001 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html]
    *2005 Scion tC Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/516096-2005-scion-tc-sq-hertz-audison-pioneer-build-log.html
    *1998 Astro Van Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/567468-kha-does-spl-build-1996-astro-van.html

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    Re: Concrete SPL build

    Looking forward to seeing this



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    Re: Concrete SPL build

    But will it blend?




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    Re: Concrete SPL build

    Quote Originally Posted by Kangaroux View Post
    But will it blend?
    blend?



    have you been helped by me? i'd love to know. shoot me a PM.

    *My 2001 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html]
    *2005 Scion tC Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/516096-2005-scion-tc-sq-hertz-audison-pioneer-build-log.html
    *1998 Astro Van Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/567468-kha-does-spl-build-1996-astro-van.html

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    Re: Concrete SPL build

    I have seen on construction sites that Foam has been used,and (chicken wire?) wrapped around that, and concrete sprayed on top of that, and felt pretty solid when finished.I have also thought about the concrete board that is generally used in commercial buildings for rest rooms/counter tops for tiling ect.just a couple of other ideas possibly for concrete structure.Yet, I am Subscribed




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    Re: Concrete SPL build

    Quote Originally Posted by keep_hope_alive View Post
    blend?
    Nevermind, lol




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    Re: Concrete SPL build

    Quote Originally Posted by audiobaun View Post
    I have seen on construction sites that Foam has been used,and (chicken wire?) wrapped around that, and concrete sprayed on top of that, and felt pretty solid when finished.I have also thought about the concrete board that is generally used in commercial buildings for rest rooms/counter tops for tiling ect.just a couple of other ideas possibly for concrete structure.Yet, I am Subscribed
    Heard good things about cement board. Laminate together a few layers of that with resin on top of a few layers of wood laminated together with resin.




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