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Reload Thread: NEED HELP 2 18" RE SX 18s in 89 Caprice

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    NEED HELP 2 18" RE SX 18s in 89 Caprice

    I got a box design from Greg from USAmps/RE but he told me he recommends 20 CU FT

    but the design he gave me is for 9 CU FT and im pretty sure i can fit more then that in the trunk..its HUGE

    anyone have any idea how big of a box i can fit in the trunk..ported..tuned to 33hz preferably



    any help?

    he also said the 15" was a typo and thats the specs for the 18's







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    Re: NEED HELP 2 18" RE SX 18s in 89 Caprice

    Well that design is for a pair of their 15's, apparently. To do the SX's right you need around 6ft^3 each after displacements. So around 15ft^3 overall...check your trunk and see is you have the space for that.



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    Re: NEED HELP 2 18" RE SX 18s in 89 Caprice

    yea what ryan said, and thats on the small side too but will be suffice. the optimum is 8 cubes @33hz for 1 18sx. so 16 cubes plus port. maybe greg was giving you a design and not specific to your subs or he sent you the wrong info.



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    Re: NEED HELP 2 18" RE SX 18s in 89 Caprice

    thats what im thinking is wrong info

    how can i measure my trunk to figure out how to design the box..im new to building a box.im used to getting one of my buddies systems and just hooking it up..




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    Re: NEED HELP 2 18" RE SX 18s in 89 Caprice

    measure your trunk to find out the maximum size of the complete box. probably will have to build the box into the trunk. not going to be able to build it then install it. may be a little complex for you being you never built one. see if there is someone on here local to you that has experience to help you would be your best bet. offer them an incentive like a little $ and maybe some beers.



    REF's: Revrider1, Kevinn, darkhunter139, 2002XLT,
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    Re: NEED HELP 2 18" RE SX 18s in 89 Caprice

    wall it



    justin smith
    1996 mercury grand marquis
    20'' bentchi b7 lexani n3000 245/35/20
    cactus 5kw at 1ohm dcr(beast)
    2 18'' btl's in a 14.15^3ft wall tuned to 35hz with 210''of port
    kicker zx650.4
    componets in still the works
    200amp motorcraft alt
    xs power d3100 (beast)
    kenwood ddx512 h.u

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    Re: NEED HELP 2 18" RE SX 18s in 89 Caprice

    Quote Originally Posted by oldschool4me View Post
    and thats on the small side too but will be suffice. the optimum is 8 cubes @33hz for 1 18sx. so 16 cubes plus port.
    Very true, those SX's like larger boxes from what I've heard.



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    Re: NEED HELP 2 18" RE SX 18s in 89 Caprice

    Greg jus emailed me tha same specs for my SX 15's, My Box slams (if this helps you any) !!!!!!!!!!! - Check out my NEW signature pic on bottom...

    Greg wrote: Attached is a box that should do very well for you just shorten the port by 3 inches

    Greg Carolus

    US Amps - RE Audio Tech Support / Production Manager

    20819 Currier RD Suite 100

    City of Industry CA 91789

    U.S.A

    Office 877-267-9360

    Fax 909-869-9199

    Cell 626-833-2177

    [email protected]



    dD9518s(SC) Lanzar(Opti7k) Kinetik Excessive Amperage Xstatic Pioneer Kicker(Hyperflex) Dynamat Stinger

    Scott Owens 180 db run at Edge Audio In Phoenix,Az http://vids.myspace.com/index.cfm?fu...eoid=103176001

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    Re: NEED HELP 2 18" RE SX 18s in 89 Caprice

    so then would his specs that he gave me make a decent sounding box..i dont want to compete..i just want to be loudddd and hit LOWWWW

    but for the low i probably need a bigger box lol



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    Re: NEED HELP 2 18" RE SX 18s in 89 Caprice

    dont make the box with that design he sent you, your subs wont fit. its for 15" subs. figure out the math on the heigth which is labeled C 18.5" height and your sub wont fit because of the thickness of the top and bottom boards of the box has to be subtracted from the total height. i would get another design that is actually for your subs and not the 15" ones. or sell the 18s and get 15s cuz the 15s in the correct box will sound better than the 18s in a box that is way too small.



    REF's: Revrider1, Kevinn, darkhunter139, 2002XLT,
    lax916, bad @ss chevy, dropped_mazda, integra88, CRXBMPN, 88irocZ, the franchise, SlainNothing, pootie, khmer rouge, NewAgeKing, thegreatestpenn, oneill584, headless, scoob8000, Blados,ProjectPechkin, Krackerjack, CrownVicon24's, Louisiana_CRX, go_go_thrash, IonSQL, PBateman, ericoutdoorguy, Flomaster, B-roc, RetroAudioinc, ampjunkielikeme, bur1196, integra2468, illbmeubu, j3bus2k3, wgsj_fortvalley, l7runner, Fast1one, +many more
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    Re: NEED HELP 2 18" RE SX 18s in 89 Caprice

    ok..so if i build a bigger box..have them firing up at the trunk and the port firing towards the front of the car..will it get loud or will i just have a ton of rattle?

    i want this to hit rediculously low

    so i guess imma have to build it in the trunk...this is gonna **** lol



    1997 Pontiac Grand Prix
    1 AQ HDC3 15
    AP30001D
    Stinger 1/0 HPM
    BIG 3
    Pioneer AVH-P3200DVD
    1 Yellowtop ( upfront ) Kinetik HC2400 in trunk


    REFS: irocwagon , (more to come)

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    Re: NEED HELP 2 18" RE SX 18s in 89 Caprice

    yea its going to rattle lol, even with lots of dynamat etc. you will lose some power if you face subs towards cab in most cases but will lose rattle. if you just want loud i would face subs and port towards rear of car just dont completely block off airflow if you follow. i have two 18s in my 94 deville and there is enuff height room to have the subs face the rear. mine are in sealed box's but you dont have the option for sealed enclosure.



    REF's: Revrider1, Kevinn, darkhunter139, 2002XLT,
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    Ref thread:
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    R.I.P Taylor Lampart (NewAgeKing) 5/13/1988 - 1/24/2010

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    Re: NEED HELP 2 18" RE SX 18s in 89 Caprice

    got some pics and some measurements lol













    how many cubes do you think i can fit in here?




    1997 Pontiac Grand Prix
    1 AQ HDC3 15
    AP30001D
    Stinger 1/0 HPM
    BIG 3
    Pioneer AVH-P3200DVD
    1 Yellowtop ( upfront ) Kinetik HC2400 in trunk


    REFS: irocwagon , (more to come)

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    Re: NEED HELP 2 18" RE SX 18s in 89 Caprice

    i would go with 2 15's



    http://www.caraudio.com/forums/buyer-seller-feedback/414807-michaellane-feedback-if-i-bought-you-traded-i-sold-you-something.html

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    Re: NEED HELP 2 18" RE SX 18s in 89 Caprice

    Quote Originally Posted by michaellane View Post
    i would go with 2 15's
    Yeah, I don't think trying to fit 18"s is worth it but it may be to you.



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