Posted by thylantyr [ 66.35.226.228 ] on December 06, 2005 at 11:00:27:
In Reply to: Porting of Line Array posted by MikeT on December 05, 2005 at 15:56:00:
Rear ports are good. You can probably combine the drivers in groups
and make chambers for each group to make the port design more
friendly, ie.. I build my budget array with four chambers, four
drivers per chamber, a 6" diameter rear port per chamber, 1 3/8"
port length. Turns out, the wood thickness of that rear wall is
1 3/8" so the port length = wood thickness so all I did was cut a
6" hole in the back of the cabinet and used a small roundover bit on
the edges. Obviously, this design is tuned higher in frequency.
http://home.pacbell.net/lordpk/robarray/6.jpg
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