include flare in flare ports?

[psychokids]

Hello,

I'm designing a couple speaker boxes and have a quick question. When I am adjusting my port to the proper size, do I include the entire inside length of the port, including the flare, or do I begin the measurement from the point where the flare is done and the diameter is constant? I cant really find too much information on this anywhere. Thanks!

-Chris

 

[Nappylady]

What you do, is you design the box for whatever you want, and then buy the port to be longer than what you need. Then you trim the port until the box response matches what the computer program calculated.