Can someone check my design?

[Dtowncats 10+ year member]

I am building a 2.2 cu. ft. ported box for my IKP. The outer dimensions I came up with are 26x13x15. Now I want to tune it to 28 hz and I came up with a port length of 37". The only thing I am really having trouble with is figuring out how to get the length correct when a turn is needed in a port. The port needs to be 13.5 inches in height and 2 inches wide. Can someone help me out?

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[fuzzai 10+ year member]

well if your port needs to be 13.5" and you need a turn in it

from what i've read everywere, you measure down the CENTER of the pipe/tub that your using for the port.

So measure your turn in the middle of port, not the outter or inner edge.

 

[Dtowncats 10+ year member]

But it's a slotted port. Does that make any difference?