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Reload Thread: (2) MA HK12x2 Custom box Design help...

  1. #1
    NissanKicker's Avatar
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    Icon14 (2) MA HK12x2 Custom box Design help...

    Hey, I have everything that I need as far as on paper... I was just wondering if ANYONE ( Knowledgeable ) could give me anymore advice, pointers, or point out something that might go wrong with this design.
    ... I REALLY WOULD LOVE FOR SOMEONE TO SKETCH ME A MODEL... I REALLY WOULD APPRECIATE IT!!!!!

    HERE WE GO!
    MA HK12x2 Spec'd enclosure ( Ported ):
    Cuft: 3cuft
    Hz: 38hz
    Sq Port: 4x4
    Sq Port Length: 14.5"
    Number of Ports: 3

    Max Dimensions ( 99 Nissan Sentra ):
    External Dimensions: 42"L x 22"D x 14"H
    Internal Dimensions: 40.5"L x 20.5"D x 12.5"H

    SUBWOOFER CUTS!
    (2) 11.5" for the sub holes...

    BOX CUTS!
    Top: 14 x 42 x 22
    Bottom: 14 x 42 x 22
    Front Wall: 42 x 12.5
    Back Wall: 42 x 12.5
    Left Side Wall: 20.5 x 12.5
    Right Side Wall: 20.5 x 12.5

    * NOTE *
    ... Front wall will have the three ported centered on the bottom, in the middle.
    Example:

    2 Ports will be on the bottom in the middle, and the third will be centered in the middle stacked on top.
    ( Think of a PYRAMID, and you'll get the picture )

    PORT
    PORTPORT

    ^^^^^^^ LIKE THAT.... Exactly!

    PORT CUTS!
    * Each port external dimensions is 4" x 14.5"
    Top: 4 x 14.5
    Bottom: 4 x 14.5
    Left Side Wall: 2.5 x 14.5
    Right Side Wall: 2.5 x 14.5

    * NOTE *
    Remember! There are 3 ports. All are IDENTICAL ( Triplets )

    To get DIRECTLY in the middle, it'll be:
    42" MINUS 8" = 34"...

    NOW

    34" DIVIDED BY 2 = 17" on each side of the ports

    To get DIRECTLY in the middle for the single stacked port, it'll be:
    8" MINUS 4" = 4"...

    WHICH MEANS

    2"s will be on each side of the stacked port, making it centered.

    TOTALING

    A PERFECT PYRAMID!!

    Here is a quick lil' sketch, to give you an IDEA of what I'm picturing in my head.








    Vehicle: 1999 Nissan Sentra GXE 4-Dr [ Lambo Doors ]
    Head Unit: Alpine CDA-124SXM
    Front Stage: Kicker DS6.5s w/ (4) Power Acoustik NB.4s - Rear Stage: (4) JVC 5-Way 6x9s
    Sub Stage: 18" FI Audio Q - Custom Ported Enclosure: 6.41 cuft Tuned @ 29Hz
    Sub Amp: (1) Kicker KX2500.1D - Highs Amp: AutoTek AT-1200.4
    Processors: Clarion EQ-746 & Clarion MCD-360
    Wiring: Install Bay 1/0 Gauge ( Including Big 3 Upgrade )
    Batteries: EverStart Maxx's ( 750 CCA ) In Front & Back
    DJ's Installation




  2. #2
    spl guru's Avatar
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    Re: (2) MA HK12x2 Custom box Design help...

    Looks neat, but maynot work well



    refrence- dbman150- skinner070-mobilecreations-JHughes-SPL2k-1phatclipse-Team H&K-woofercooker-
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  3. #3
    NissanKicker's Avatar
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    Re: (2) MA HK12x2 Custom box Design help...

    Don't take this in the wrong way... Just asking:

    1) Why not...
    2) Explain...

    Anyone else????
    ... Thanks for the compliment also!




    Vehicle: 1999 Nissan Sentra GXE 4-Dr [ Lambo Doors ]
    Head Unit: Alpine CDA-124SXM
    Front Stage: Kicker DS6.5s w/ (4) Power Acoustik NB.4s - Rear Stage: (4) JVC 5-Way 6x9s
    Sub Stage: 18" FI Audio Q - Custom Ported Enclosure: 6.41 cuft Tuned @ 29Hz
    Sub Amp: (1) Kicker KX2500.1D - Highs Amp: AutoTek AT-1200.4
    Processors: Clarion EQ-746 & Clarion MCD-360
    Wiring: Install Bay 1/0 Gauge ( Including Big 3 Upgrade )
    Batteries: EverStart Maxx's ( 750 CCA ) In Front & Back
    DJ's Installation

  4. #4
    BrianChia's Avatar
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    Re: (2) MA HK12x2 Custom box Design help...

    A sketchup only looks pretty, but it looks like you have done all of the math and calculations already for the design. If you were careful and made sure to take everything into consideration when calculating the tuning and airspace, I don't see why it wouldn't work.




  5. #5
    NissanKicker's Avatar
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    Re: (2) MA HK12x2 Custom box Design help...

    Hmm... about 4 days to come up with everything.
    .... Looked @ the factory recommendations, then converted the round ports to square ports. ( Not into the aero thing ).

    Hopefully someone will 3D it for me... If not, I guess I'll just have to build and see.




    Vehicle: 1999 Nissan Sentra GXE 4-Dr [ Lambo Doors ]
    Head Unit: Alpine CDA-124SXM
    Front Stage: Kicker DS6.5s w/ (4) Power Acoustik NB.4s - Rear Stage: (4) JVC 5-Way 6x9s
    Sub Stage: 18" FI Audio Q - Custom Ported Enclosure: 6.41 cuft Tuned @ 29Hz
    Sub Amp: (1) Kicker KX2500.1D - Highs Amp: AutoTek AT-1200.4
    Processors: Clarion EQ-746 & Clarion MCD-360
    Wiring: Install Bay 1/0 Gauge ( Including Big 3 Upgrade )
    Batteries: EverStart Maxx's ( 750 CCA ) In Front & Back
    DJ's Installation

  6. #6
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    Re: (2) MA HK12x2 Custom box Design help...

    I have a pair of 12x2's right now for my setup.Did 3cube per chamber 1 4x14 port in each.Then I went less cubes common chamber bigger port and seen some good gain.Just build a couple boxes to see what works best for you, as I am running an SUV.


    And did you check on the SX thing???




    Bought from:whiteram,Pyro_by_nature,AudioXtremes,Slab,IA2
    Sold to:annarbor84,ssackett,tapout383
    built for:skeptikal,Raid3r89
    SHADY SELLER:memphisman00
    Subs:4 Incriminator Audio Death Row 15's
    amps: Memphis 4K
    154.8@34hz

  7. #7
    BrianChia's Avatar
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    Re: (2) MA HK12x2 Custom box Design help...

    Remember that a 4" round port is not equal to a 4" x 4" square port.




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    Re: (2) MA HK12x2 Custom box Design help...

    I know it's not... I used a conversion formula

    4" x 14" long port .... Take 1/2 of the port size & multiply it by itself.

    2 MULTIPLIED BY 2 = 4

    Now multiply 4 by PIE ( 3.14 ) = 12.56 Sq. Inches of opening EACH

    TOTALLING - 37.68 Sq. Inches of opening




    Vehicle: 1999 Nissan Sentra GXE 4-Dr [ Lambo Doors ]
    Head Unit: Alpine CDA-124SXM
    Front Stage: Kicker DS6.5s w/ (4) Power Acoustik NB.4s - Rear Stage: (4) JVC 5-Way 6x9s
    Sub Stage: 18" FI Audio Q - Custom Ported Enclosure: 6.41 cuft Tuned @ 29Hz
    Sub Amp: (1) Kicker KX2500.1D - Highs Amp: AutoTek AT-1200.4
    Processors: Clarion EQ-746 & Clarion MCD-360
    Wiring: Install Bay 1/0 Gauge ( Including Big 3 Upgrade )
    Batteries: EverStart Maxx's ( 750 CCA ) In Front & Back
    DJ's Installation

  9. #9
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    Re: (2) MA HK12x2 Custom box Design help...

    is changing from L7s to those MA's in 12's worth doin???



    (this is my Civic, cosmetic makeover, ricer to eastcoast ryder) __________

    Headunit: Pioneer AVH5000DVD

    Amps: Alpine MRV-420, Clarion 3-way crossover,
    Kole Audio 3000D

    Comps: Alpine Type R 6.5 front. Polk Momo in the rear
    Subs: 2 IA Death Penalty 12's D2
    Electrical:Tsunami 0/1 ga. wiring from front to back,
    battery(Deka and g31), Big 3 in 1/0 ga
    5.6 cu.ft. ^ 33hz.

    ref's Goldtaz1

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    Re: (2) MA HK12x2 Custom box Design help...

    I think so...
    ... Considering that I've ran '06 L7 12s.... I mean, that hit hard, but I don't like the sound they have went it's alittle overpowered!
    ... there's a guy that ran (2) zx750.1 on (1) HK12x2... 1800+ rms. And it never distorted the way the L7 ( dual 2 ) did.




    Vehicle: 1999 Nissan Sentra GXE 4-Dr [ Lambo Doors ]
    Head Unit: Alpine CDA-124SXM
    Front Stage: Kicker DS6.5s w/ (4) Power Acoustik NB.4s - Rear Stage: (4) JVC 5-Way 6x9s
    Sub Stage: 18" FI Audio Q - Custom Ported Enclosure: 6.41 cuft Tuned @ 29Hz
    Sub Amp: (1) Kicker KX2500.1D - Highs Amp: AutoTek AT-1200.4
    Processors: Clarion EQ-746 & Clarion MCD-360
    Wiring: Install Bay 1/0 Gauge ( Including Big 3 Upgrade )
    Batteries: EverStart Maxx's ( 750 CCA ) In Front & Back
    DJ's Installation

  11. #11
    mlstrass's Avatar
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    Re: (2) MA HK12x2 Custom box Design help...

    Quote Originally Posted by NissanKicker View Post
    I know it's not... I used a conversion formula

    4" x 14" long port .... Take 1/2 of the port size & multiply it by itself.

    2 MULTIPLIED BY 2 = 4

    Now multiply 4 by PIE ( 3.14 ) = 12.56 Sq. Inches of opening EACH

    TOTALLING - 37.68 Sq. Inches of opening
    That's enough port area for a 3cube box. How big is the box going to be???




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