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Need suggestions for my new boxysub

Discussion in 'Archived Threads 2001-2004' started by Mark Larson, May 21, 2002.

  1. Mark Larson

    Mark Larson Supporting Actor

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    I already have a cabinet, and want to make a sub to rock the place! [​IMG]
    The internal volume is 1.8 cu ft - it is actually an old speaker of some sort.
    I know you shouldn't work with a pre-defined size, but if i go full DIY, it'll end up costing me $$$.
    So, for now, the plan is to use a SVS original driver, power it with a 250W plate, and some calculations with WinISD show this:
    Sealed:
    60 hz ---> -2 dB
    30 hz ---> -5.5 dB
    20 hz ---> -8.9 dB
    Vented with 25 hz tuning:
    60 hz ---> -0.4 dB
    30 hz ---> 3.92 dB
    20 hz ---> -4.65 dB [​IMG]
    16 hz ---> -14.01 dB [​IMG] [​IMG]
    Any recommendations on what i can do? I got the T/S parameters from another post:
    Fs/21 hz
    Qts/0.38
    Qes/0.39
    Qms/6.6
    Vas/4.6
    Re/3.2
     
  2. ThomasW

    ThomasW Cinematographer

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  3. Mark Larson

    Mark Larson Supporting Actor

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    Thanks.
    What kind of Vas / other parameters am i looking at for a box that small?
    What would happen if i stuck the driver in there anyway? Overheating? Bottoming out?
     
  4. Patrick Sun

    Patrick Sun Studio Mogul

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    If you're adamant about using the SVS driver in that small of a box, I'd just use it in a sealed box and roll the dice on room gain to fill in the bottom end. I have one in a sealable 2.5 ft^3 box and it does okay.
     
  5. ThomasW

    ThomasW Cinematographer

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