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    2 Kicker 15" L7s.. In A Civic Hatch.. I wanna do this right..

    alright.. im about to do a build for a buddy for his early 90s civic hatchback..

    2 Kicker L7 15s, off a Hifonics Bxi2610D.. Should get loud.. its what he wants, so whatever.. BUT for the box..

    I wanna make sure this is perfect.. I have a 34x34x20 space to work with.. could go a bit deeper i guess.. but thats about the extent of it.. I want to see what you guys think for the box.. where subs should face, port size, etc..

    I was gonna do subs and port on same plane, big slot across the top, he could turn box towards the hatch or front, whatever he prefers, and should get loud.. I want to do an interchangable port, one for lows, one tuned slightly higher for the mic (wants to compete in local comps).. Any input is Greatly appreciated.. Thanks guys..

    Happy Holidays, Have a safe new years fellas..



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    Re: 2 Kicker 15" L7s.. In A Civic Hatch.. I wanna do this right..

    tune it between 35-38 and port back subs up
    i just did 2 12" brutus squares an 2450 rms in an acura hatch and he can do small hair tricks on music big 1's on tones really easily
    dextermoped in my sig he even helped with the install.
    he will be posting a build log soon.



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    Re: 2 Kicker 15" L7s.. In A Civic Hatch.. I wanna do this right..

    You think itll be louder then sub and port back? Im not doubting you.. as in SUVs ive done the same.. but elaborate on what you think. I appreciate it man..



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    Re: 2 Kicker 15" L7s.. In A Civic Hatch.. I wanna do this right..

    the subs compress of the glass the port back give it time to develop the sound wave subs waves are way slower than highs so it takes more distance for the sound to develop.



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    Re: 2 Kicker 15" L7s.. In A Civic Hatch.. I wanna do this right..

    Alright.. I think imma try subs up port back.. With that said.. What about port area, and sub placement.. subs all the way up to the front seats? And I wanna do one chamber braced to hell.. port area fro roughly 10cubes after disp. tuned to ~32, and tuned higher for comps..



    Refs: 02Corvette, PsychoTheRapist, Quez82, Fattony911, Megalomaniac, PatFitz9, Twistid, Robertspangler, SPL140.2, hazardous0388, scoob8000, WOT, Rashadd, Tricked - CS.org: TommyTheCat, HawaiianBassHed, MLGreen, Jmanpc..

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    Re: 2 Kicker 15" L7s.. In A Civic Hatch.. I wanna do this right..

    somewher close to the middle of the box but closer to the seat than the rear.

    120-140 sq " of port and tune at 35-38 they **** below 35 they dont get real low.



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    Re: 2 Kicker 15" L7s.. In A Civic Hatch.. I wanna do this right..

    Yea.. Last time i did 2 L7s in a blazer and tuned em at 36 and it hit low and high, but the kid was happy with it.. Thanks man.. Imma try n do a build log although its not that big..



    Refs: 02Corvette, PsychoTheRapist, Quez82, Fattony911, Megalomaniac, PatFitz9, Twistid, Robertspangler, SPL140.2, hazardous0388, scoob8000, WOT, Rashadd, Tricked - CS.org: TommyTheCat, HawaiianBassHed, MLGreen, Jmanpc..

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    -- 1995 Honda Civic -- -BlackedOut-
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    Re: 2 Kicker 15" L7s.. In A Civic Hatch.. I wanna do this right..

    my 12" L7 got pretty low tuned at 37Hz but when i tuned it to 32Hz it lost all its deep bass. so i would reccomend something around 37Hz. i did a slot port box. i got a prefab tuned at 34Hz and it ****** ***. i wasn't pleased with my numbers on two 12" L7's either



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    Re: 2 Kicker 15" L7s.. In A Civic Hatch.. I wanna do this right..

    Quote Originally Posted by SicAudio View Post
    the subs compress of the glass the port back give it time to develop the sound wave subs waves are way slower than highs so it takes more distance for the sound to develop.
    *smacks head on table*

    All frequencies travel at the same speed, all other factors left equal.



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    Re: 2 Kicker 15" L7s.. In A Civic Hatch.. I wanna do this right..

    Quote Originally Posted by SSS 18734 View Post
    *smacks head on table*

    All frequencies travel at the same speed, all other factors left equal.
    Chemistry 101




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    Re: 2 Kicker 15" L7s.. In A Civic Hatch.. I wanna do this right..

    Quote Originally Posted by SicAudio View Post
    the subs compress of the glass the port back give it time to develop the sound wave subs waves are way slower than highs so it takes more distance for the sound to develop.
    never said the speed of the sound changes dude i said the wavelength learn to read


    Sound energy is transmitted through air (or other particles) as a traveling pressure wave. In air the displacement wave amplitude may range from 10-7 mm to a few mm per second.

    Frequency
    The frequency - cycles per second - of a sound is expressed in hertz - Hz. The frequency can be expressed as

    f = 1 / T (1)

    where

    f = frequency (s-1, Hz)

    T = time for completing one cycle (s)

    Example - Frequency
    The time for completing one cycle for a 500 Hz tone can be calculated using (1) as

    T = 1 / (500 Hz)

    = 0.002 s

    The range for human hearing is 20 to 20.000 Hz. By age 12-13.000 Hz are the upper limit for many people.

    Wavelength
    The wavelength of sound is the distance between analogous points of two successive waves.



    λ = c / f (2)

    where

    λ = wavelength (m)

    c = speed of sound (m/s)

    f = frequency (s-1, Hz)

    Example - the Wavelength of a Tone
    In air at normal atmosphere at 0 oC the speed of sound is 331.2 m/s. The wavelength of a 500 Hz tone can be calculated as:

    λ = (331.2 m/s) / (500 Hz)

    = 0.662 m



    Quote Originally Posted by slammedincouch View Post
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    Quote Originally Posted by misfit138 View Post
    How did you manage to pack that much stupid into such a small amount of words?
    Quote Originally Posted by Magnus View Post
    I got rick rolled by SicAudio lulz
    Quote Originally Posted by Magnus View Post
    I just got rick rolled by SicAudio again lulz.
    Quote Originally Posted by chickaboom View Post
    awww.... dude! I can't believe you were the first! to rick roll me! I am a noob!
    sold to: Johnny Law.Lulz/Worstenemy453,Pumkinman, j1b1e1, DexterMoped, miyagi gboo559,CSU87,nate2587, MichaelLane, SmLLySack. MR_Imperial, Herrrerra, ltr450racer690, 05fronty bought from: TripleB45, bigwheel15, (kroid77 but never recieved..)
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    Re: 2 Kicker 15" L7s.. In A Civic Hatch.. I wanna do this right..

    i've seen subs up ports up in this specific vehicle be loudest.



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    Re: 2 Kicker 15" L7s.. In A Civic Hatch.. I wanna do this right..

    almost every LOUD crx and civic has them up and back from what i remember.



    Quote Originally Posted by slammedincouch View Post
    Sic rolled me in front of my mom earlier...
    Quote Originally Posted by misfit138 View Post
    How did you manage to pack that much stupid into such a small amount of words?
    Quote Originally Posted by Magnus View Post
    I got rick rolled by SicAudio lulz
    Quote Originally Posted by Magnus View Post
    I just got rick rolled by SicAudio again lulz.
    Quote Originally Posted by chickaboom View Post
    awww.... dude! I can't believe you were the first! to rick roll me! I am a noob!
    sold to: Johnny Law.Lulz/Worstenemy453,Pumkinman, j1b1e1, DexterMoped, miyagi gboo559,CSU87,nate2587, MichaelLane, SmLLySack. MR_Imperial, Herrrerra, ltr450racer690, 05fronty bought from: TripleB45, bigwheel15, (kroid77 but never recieved..)
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    Re: 2 Kicker 15" L7s.. In A Civic Hatch.. I wanna do this right..

    thx, i've had three crx's and in those a crx style box worked best... two 15's idk if he has enough width to make a mid box port, maybe across the entire back of the box firing up, or hey ports back really cant hurt after all, it wont be all that much of a diff either way imho.... could always do subs forward ports back thats the new standard for crx's now-a-days



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    Re: 2 Kicker 15" L7s.. In A Civic Hatch.. I wanna do this right..

    Civic hatch likes sub up port back for sure. You may get good results with other configurations but this is what I would do. It also likes sub forward port back if you get the subs close to b pillar.



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