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    Box For My 6 8" Subwoofers

    I'm thinking about making 2 ported boxes for my 6 8's, one on each side of the trunk, with the subs facing towards the middle of the trunk and the port firing at the backseat (see pic, like that but with the boxes parallel).

    The recommended box volume is 0.75 ft^3 for a ported enclosure, so I figure make the boxes13x35x13 each, which equals 2.564 ft^3 = 2.35 ft^3 after sub displacement, which gives each sub 0.783 ft^3. What frequency should I tune the box to? The spec sheet for the MTX Terminators say they only get down to 40hz, but I'm guessing in the right box they will hit lower than that. I'm looking to maximize their low-end output. I want to make a port out of PVC pipe or something similar, just to keep things simple.
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    New setup in the works:
    Vehicle: 1999 Ford Windstar
    Head Unit: Pioneer Premier DEH-P860MP
    Signal Processing: Profile Q100 3-Way active crossover, set to 80hz and 3.5khz
    High Pass: the legendary Aura tweeters powered by a Pioneer GM-3000T
    Band Pass: Ascendant Audio 6.5" Poly Midwoofers powered by a Pioneer GM-5000T
    Low Pass: Elemental Designs 19Ov.2 in 3ft^3 tuned to 30hz, powered by a Power Acoustik 2APC-1400




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    Re: Box For My 6 8" Subwoofers

    looks good to me.. id say 30~33hz... thats what most people tune to.. maybe in the 27+ range.

    cant help ya with the port tho. its kinda complicated.




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    Re: Box For My 6 8" Subwoofers

    Quote Originally Posted by req
    looks good to me.. id say 30~33hz... thats what most people tune to.. maybe in the 27+ range.
    I'm think it'll need to be at least 33hz, since the subs probably can't hit that low. I really don't know though, I'm a complete n00b when it comes to building ported boxes.



    New setup in the works:
    Vehicle: 1999 Ford Windstar
    Head Unit: Pioneer Premier DEH-P860MP
    Signal Processing: Profile Q100 3-Way active crossover, set to 80hz and 3.5khz
    High Pass: the legendary Aura tweeters powered by a Pioneer GM-3000T
    Band Pass: Ascendant Audio 6.5" Poly Midwoofers powered by a Pioneer GM-5000T
    Low Pass: Elemental Designs 19Ov.2 in 3ft^3 tuned to 30hz, powered by a Power Acoustik 2APC-1400

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    Re: Box For My 6 8" Subwoofers

    Would any of the port tubes at www.crutchfield.com work for my boxes? I have no clue how to determine the frequency... if someone could do it for me I'd be much obliged.



    New setup in the works:
    Vehicle: 1999 Ford Windstar
    Head Unit: Pioneer Premier DEH-P860MP
    Signal Processing: Profile Q100 3-Way active crossover, set to 80hz and 3.5khz
    High Pass: the legendary Aura tweeters powered by a Pioneer GM-3000T
    Band Pass: Ascendant Audio 6.5" Poly Midwoofers powered by a Pioneer GM-5000T
    Low Pass: Elemental Designs 19Ov.2 in 3ft^3 tuned to 30hz, powered by a Power Acoustik 2APC-1400

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