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Re: 4Pi Pro port? [message #52391 is a reply to message #52390] Fri, 01 August 2008 11:11 Go to previous messageGo to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18835
Registered: January 2001
Illuminati (33rd Degree)

The port should be 6" x 3.5" and 10" long. It doesn't matter if the wide dimension is horizontal or vertical, although if the tweeter is mounted internally, it's a tight fit and has to go the way it is. But if you move the tweeter up on top and move the woofer up to keep the distances the same, you can change where the port is. Don't change the length though, it should always be 10". Also, remember this is for the stock box size. If you make a larger box, the port size changes. You want the Helmholtz frequency to be 38Hz.


 
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