subwoofer box calculation?

Discussion in 'Car Subwoofers' started by bigcam, Feb 24, 2009.

  1. bigcam

    bigcam Full Member

    i have a box all most done its 17x17x42 out side. i cant make it any biger because i dont have room for any biger box. my qestion is how do i tune it to 33hz? when i calculate it out i need a port 19.347 long but my box is only 17" deep how do i tune it like this?
     
  2. G3n3R@1

    G3n3R@1 Full Member

    are you making it slotted or are you using a round port?
     
  3. bigcam

    bigcam Full Member

    sloted 3.5x 15.5 i just dont know how to make it as long as it needs to be
     
  4. liftedranger08

    liftedranger08 Full Member

    You will have to do an L shape at the end.
     
  5. G3n3R@1

    G3n3R@1 Full Member

    do ass lifted ranger says, remember you must measure down the center of the port even in the L part to get your length.
     
  6. bigcam

    bigcam Full Member

    ok so how long do i make the port befor i turn it the 90* ?
     
  7. bigcam

    bigcam Full Member

    also im making a box for a buddy of mine that has room for a deeper box same specs as the one i have sept it will be 22" deep and he wants it tuned at 40hz that calculates to about a 6" port now that will leve 15.25" from the back of the box to where the port starts heading out of the box. will that reall work?