square ports instead of round ones.....

[jefe1]

need some help to make a vented enclosure but i want to change the round ports for a square ones.

does anyone from this great room the formula to calculate the square port?

thanks in advance

saludos from mexico

jefe1 //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif

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[Anh]

It's basically the same as a tube port. But you get the area of the port by multiplying port width by port height.

 

[80_Cutlass_mn 10+ year member]

In order to maybe give you some numbers I need to know how big the internal volume of the box is, and what tuning frequency your lookin to get. Then I can tell you how long and wide it has to be.