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Reload Thread: speaker placement to port

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    U n r e a L's Avatar
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    speaker placement to port

    im building a ported box for 1 12....now should the speaker be placed in the middle of the box or as far away from the port as possible ?



    02 Acura RSX Type S
    Audiobahn A1500hct
    2 Kicker L7 12's in 6cft Ported Box




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    Re: speaker placement to port

    Not to thread jack, but yeah, I had a similar question when I built a box a couple of weeks ago.

    Here are two designs I came up with:





    The funny looking thing is a subwoofer. Does it matter where it goes? Is anything different?

    It's not urgent, I ended up building a box like this:



    Deck: Pioneer Premier 880 w/ iPod
    In-dash: AudioControl Epic-150
    Sub: Digital Designs 9515e/f Dual 1.0
    Amp: Atomic 5000.1 @ 0.5 ohm
    Box: 3.85 @ 36 hz with 66 sq in of port

    Refs: fwb_1234, Hopes Audio, Louisiana_CRX, astrolade, nhustlar, teamquakecelica, walkychalky, negative3five, TypeRBass, jblanford (x2), massiveaudiocw, KnOkIn It 420, hoss, xtremebassjunky, trow100, MillzThaYungin, IonSQL, matrxx dude, yunvme666, vitveet, PWNED, Team H&K, jk32sho

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    oglejust's Avatar
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    Re: speaker placement to port

    many ppl say sub close to the port but i find it best to put it far away from the port in my car




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    Re: speaker placement to port

    I too had this question when i built my 2-12" cvx's. Then i thought about it and the woofer is just displacing air in the box so it really shouldnt matter where it is... but i still want advice.



    System:
    Subwoofers:
    Two 12" Kicker Comp VX
    Amplifiers: Alpine MRV-340/ Ma Audio HK401SX.
    Speakers: Polk Audio DB 570 5" x 7" 2-Way Speakers (comps to come)
    Head Unit: Pioneer DEH-P4800MP
    Capacitor Power Acoustik 3.0 Farad

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    Re: speaker placement to port

    anybody?



    Deck: Pioneer Premier 880 w/ iPod
    In-dash: AudioControl Epic-150
    Sub: Digital Designs 9515e/f Dual 1.0
    Amp: Atomic 5000.1 @ 0.5 ohm
    Box: 3.85 @ 36 hz with 66 sq in of port

    Refs: fwb_1234, Hopes Audio, Louisiana_CRX, astrolade, nhustlar, teamquakecelica, walkychalky, negative3five, TypeRBass, jblanford (x2), massiveaudiocw, KnOkIn It 420, hoss, xtremebassjunky, trow100, MillzThaYungin, IonSQL, matrxx dude, yunvme666, vitveet, PWNED, Team H&K, jk32sho

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    Re: speaker placement to port

    Sure it matters. you dont want the sub too close to the port because the air is going to take the path of least resistance which would be out of the port opening.

    It kills me when i see someone build a huge box but then put the speaker right next to the port. how does the remaining air to the non port side act as air suspension the same as the easy flowing (out the port) side?

    the idea here is to use the air similar to that of a sealed enclosure as air suspension only the way the suspension or air load against the sub works is dictated by the resistance of the port. long story short the sub needs to be on one end of the box (to most effectively do its job) and the port on the other (to also most effectivey do its job as well)




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    Re: speaker placement to port

    as far away as you can.



    2006 Jeep Liberty
    Adire Audio, Cadence, Clarion, MB Quart

    Lv = [(14630000 x R^2) / (Fb^2 x Vb)] - 1.463R
    *Vb = vol. in cu"
    **R = sq.rt. A / Pi (for square/slot port)

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