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measuring port length for slot port 90 degree bend

dbsupra
in SPL & SQ / Fabrication

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Posted

Starting a new box build this weekend. I'm doing a slot port for this one.

The box is 23" long with a 2.25" wide port. Need a 27" long port to tune.

According to my math, the L section of the port needs to be 4" long.

This assumes 2.25" from end of box to edge of long port length which I come up with 20.75. Taking center of port at 21.875 that leaves me with an L of 5.125 center. Subtracting back in 1.125 of center leaves me with 4".

For end correction, I need to add back in 1.125 which brings me back to 5.125" L

I've had a long week. Is my math correct? I don't design a lot of slot ports.

Thanks!

Dave

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    just measure the length down the center of the port.

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