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Thread: How large of a sealed box for a driver with the following specs?

  1. #11
    Indecisive Tuner BowDown's Avatar
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    Quote Originally Posted by Turbo5upra View Post
    This thread is so full of win :-P
    So is my zipper. Pucker up..
    2010 Fusion Sport: SQ Install w/Dash Sub - Build Log of the Month Winner | July 2011


    Nexus 7 | DAC | miniDSP | Aura MR2150 x 3 | NRT18-8 | RS180-4 | neo8-s

  2. #12

  3. #13
    Indecisive Tuner BowDown's Avatar
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    Doesn't really show me anything I didn't already find out. Guess the big question is: what does cabin gain do to my curve?

    Don't have the tools to check this.
    2010 Fusion Sport: SQ Install w/Dash Sub - Build Log of the Month Winner | July 2011


    Nexus 7 | DAC | miniDSP | Aura MR2150 x 3 | NRT18-8 | RS180-4 | neo8-s

  4. #14
    Big Daddy Chad's Avatar
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    it makes it go up on the bottom

  5. #15
    Indecisive Tuner BowDown's Avatar
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    Not too concerned with bottom when my curve is truncated from 100-450.
    2010 Fusion Sport: SQ Install w/Dash Sub - Build Log of the Month Winner | July 2011


    Nexus 7 | DAC | miniDSP | Aura MR2150 x 3 | NRT18-8 | RS180-4 | neo8-s

  6. #16
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    Quote Originally Posted by BowDown View Post
    I used WinISD... 0.4ft^3 is flat in the range I need... 0.25ft^3 has a rise curve of only about 2db. Any smaller than 0.25ft^3 it really starts to peak around 250hz. What it tells me I don't know.
    use the box size/ type that yields results closest to what you want. i would try .4 cubes.
    Last edited by traceywatts; 04-28-2011 at 05:17 PM. Reason: spelling

  7. #17
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    Quote Originally Posted by BowDown View Post
    Also firing from a door location, or from a kick panel location what kind of cabin gain can one expect from 100-450hz?
    this is an option for modeling cabin gain in WinISD:

    www.linearteam.org • View topic - For everyone wanting to predict "Cabin Gain"


    R-

  8. #18
    Senior Member cvjoint's Avatar
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    Quote Originally Posted by BowDown View Post
    I used WinISD... 0.4ft^3 is flat in the range I need... 0.25ft^3 has a rise curve of only about 2db. Any smaller than 0.25ft^3 it really starts to peak around 250hz. What it tells me I don't know.
    Here's my approach:

    1. no box is best
    2. in a car you must have a box, the car is a box...
    3. if you have to use a box use one that gives .56 Q - maximally flat delay
    4. if you have to use a box and can't afford one big enough try not to go over .7 Q
    Everything else is EQable.

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