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Found 3 results

  1. Can anyone tell me how much cu ft I need for 2 sundown x-12s on a sundown 4000d in a 4th order box. The sealed chamber is a single so both subs are in 1 chamber. The motor will be in the ported chamber. It will be a blow through with a 9x9 port that is 10.54” long (4.9” inside box , 4.9” outside box)
  2. Hey guys i'm currently working on designing a 4th order bandpass for my two rockford fosgate 12" p3 d4's and i'm stuck on square or aero port and if the one or other port area and length. i tried using this calculator to help me figure it out but yeah that kinda failed where i got the result for port area the size of the car it self so i really need som help with this. the box it self right now is a triple chamber with the sealed chambers at 1,17 ft3 for each sub and the vented section 2.14 ft3 net (i'm gonna invert the woofers) with a tuning of 46hz and the roll off is -3db at 27 hz close to the fz of the woofers and im going for a more sq box daily box then spl and i thought a 4th order would be good for the woofers. I'm considering using 3 or for 6" aero ports but the depth of the box isn't sufficient enough. or a square port in the middle but i dont really know what size it should be or how long. every bit of help is appreciated. cheers from another bass head from sweden! - Hampus
  3. Hey guys i'm currently working on designing a 4th order bandpass for my two rockford fosgate 12" p3 d4's and i'm stuck on square or aero port and if the one or other port area and length. i tried using this calculator to help me figure it out but yeah that kinda failed where i got the result for port area the size of the car it self so i really need som help with this. the box it self right now is a triple chamber with the sealed chambers at 1,17 ft3 for each sub and the vented section 2.14 ft3 net (i'm gonna invert the woofers) with a tuning of 46hz and the roll off is -3db at 27 hz close to the fz of the woofers and im going for a more sq box daily box then spl and i thought a 4th order would be good for the woofers. I'm considering using 3 or for 6" aero ports but the depth of the box isn't sufficient enough. or a square port in the middle but i dont really know what size it should be or how long. every bit of help is appreciated. cheers from another bass head from sweden! - Hampus
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