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    Icon32 4th order for 2 SA 12's design help

    im looking to make a 4th order for my 2 sundown SA 12's and put it in my trunk of my honda accord. i wanna have it so i use up most to all of the trunk. if any one has done a design for 2 of these can you post the measurements of the box internal and external. my max dimensions to work with are (33 1/2 D x 36 W x 17 H) also can you post the port length and dimensions because im going for a 50hz tuning so my low end is arounf 20hz -30hz but i can still hit those mid-lows like the 45hz to 80hz. i really need help this is my first box build ever and i wanna make sure its done correctly. im powering these beasts with a hifonics bxi 2061d amp pushing 2400 watts rms at 1 ohm.







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    Re: 4th order for 2 SA 12's design help

    the specs of the sundowns are
    re:4.57 ohms
    fs: 33.71hz
    VAS: 21.21 liters
    Qes: 0.58
    Qms: 5.34
    Qts: .52
    Le: 3.40 mh
    BL: 21.64 NA
    Mms : 280g
    Sens: 83.21 decibals




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    Re: 4th order for 2 SA 12's design help

    why not buy a good design? There's lots of designer's on here that will do a design for a very reasonable price.



    Refs: diyma-sold to:Mazda3SQ CA.com-traded:matrxx dude CACO- Sold to: Ajax_6154, brandonb1029, TeejayBee traded with: papito FLSPL- Bought from:98chevySPL, JBLCAMRY, traded with:97montecarlo, thumpenranger

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    Re: 4th order for 2 SA 12's design help

    Quote Originally Posted by nicholasmccabe View Post
    do seperate sealed chambers @ 1 cube each and stuff 1lb of polyfill in each chamber. On the ported side go with 4 cf, and tune it to 48-50hz. To get reall ******, go 6cf on the ported side, if you have room. That will be even more efficent and get as loud as you can stand it. I can work something ouit for you, as far as a design. Send me a pm my guy


    Nick
    Why would you use poly fill on the sealed side when you can make it as big as you want and not need poly fill?




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