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    Help me build a home 15" sub, paypal :)

    I just bought this sub: http://www.parts-express.com/pe/show...number=295-470

    t/s specs:
    *Power handling: 250 watts RMS/350 watts max *VCdia: 2" *Le: 2.30 mH *Impedance: 4 ohms *Re: 3.1 ohms *Frequency range: 20-500 Hz *Fs: 20 Hz *SPL: 92 dB 2.83V/1m *Vas: 9.70 cu. ft. *Qms: 4.00 *Qes: .50 *Qts: .44 *Xmax: 8.5 mm *Dimensions: A: 15", B: 14", C: 6-3/8".

    and this amp:http://www.parts-express.com/pe/show...number=300-805

    Bass Boost 6dB @ 30Hz
    * High power/low distortion
    * Adjustable low pass crossover
    * High and low level inputs/outputs
    * Auto On/Off
    * Phase reversal switch
    * Power output: 170 watts RMS @ 8 ohms 240 watts RMS @ 4 ohms
    * S/N ratio: 90 dB (A-weighted)
    * Dimensions: 9-13/16" W x 9-13/16" H x 5" D




    I am thinking about building a vented box, but I am also considering sealed. Main things I am looking for are accuracy and sound quality. This is for my room, not my trunk. I am willing to paypal $5-10 if someone can give me a really nice plan. Should I go vented or sealed? I have already bought these parts so that is what I will be using. If I go vented, I would either go slot port or flared pvc.

    Prefered size range is 2 cubic feet to 4 cubic feet, possibly larger if I like the design.

    Material is birch plywood, not mdf. I don't like cutting mdf. I will reinforce of course.

    Will a slot port give me the accuracy I need for home audio?
    Last edited by vario; 12-01-2008 at 08:48 PM.



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    Re: Help me build a home 15" sub, paypal :)

    I would also like to add that for aesthetics i am thinking having the driver top, then the slot port below, front firing.



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    Re: Help me build a home 15" sub, paypal :)

    thats a nice sub but is it for music? movies? Thats would determine the tuning



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    Re: Help me build a home 15" sub, paypal :)

    I appreciate prompt reply. Music mostly (classic rock, some rap, metal) and a mixture of movies as well. Id like a tight, accurate, hard hitting response. You could bring a person in and they could say " **** that sounds good"

    if it helps, I am running what could be called a stereo setup I guess. Two rear 2-way KLH Model 17's, two front technic sb-l71 3 way's in front and a sub(this one after its built ). The fronts and rears are bridged off two channels on my behringer ep1500 dj amplifier, 450 watts per channel at 4 ohm.



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    Re: Help me build a home 15" sub, paypal :)

    check the DIY section on AVSforum and hometheatershack as there's a LOT of HT sub builds. Probably with the PE sub you have...




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    Re: Help me build a home 15" sub, paypal :)

    cant find any builds for this particular sub.

    here is my wip, am I on the right track atleast?

    Last edited by vario; 12-01-2008 at 06:32 PM.



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    Re: Help me build a home 15" sub, paypal :)

    Port length is 107.71" long, how do I calculate that when i am making the mockup?

    here is a photo of the mockup so far



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    Re: Help me build a home 15" sub, paypal :)

    i gave up, $10 to anyone who makes me a good slot port, 4 cu ft



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    Re: Help me build a home 15" sub, paypal :)

    i can help ya out PM me



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    Re: Help me build a home 15" sub, paypal :)

    pm sent



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    Re: Help me build a home 15" sub, paypal :)

    Quote Originally Posted by vario View Post
    cant find any builds for this particular sub.

    here is my wip, am I on the right track atleast?

    that response looks like garbage for movies




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    Re: Help me build a home 15" sub, paypal :)

    yeah thats why i gave up



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    Re: Help me build a home 15" sub, paypal :)

    Quote Originally Posted by vario View Post
    I would also like to add that for aesthetics i am thinking having the driver top, then the slot port below, front firing.
    Negative. If you're going for aesthetics, I say you have a down-firing sub, and have the space in between the legs covered in grill cloth.

    That would look the best.
    It would just look like a piece of furniture. As for the port, however, you can have port down, or aeroport facing anywhere, and paint the box a nice black.



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    Re: Help me build a home 15" sub, paypal :)

    Quote Originally Posted by bamaboy View Post
    that response looks like garbage for movies
    Not really. It's just not as peaky.

    116 dbs isn't too bad.



    Now designing / building boxes.
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    Refs: MSW Danny, atsaubrey (great seller), ampjunkielikeme, wgsj_fortvalley, tEh koRnDog, bad @SS chevy, Nismos14 (who is the man. )



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    Re: Help me build a home 15" sub, paypal :)

    i dont want a downfiring sub, want driver to fire front i have wood floors and i run full sized vintage speakers so it would match my aesthetic lol

    edit: forgot to mention, amp has bass boost 6db at 30 hz
    Last edited by vario; 12-01-2008 at 08:49 PM.



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