Posted by Wayne Parham [ 70.128.106.32 ] on February 27, 2009 at 13:22:45:
In Reply to: Venturi Port ??? posted by Wayne-o on February 26, 2009 at 23:46:37:
I would not want anything that increases airspeed in order to have a pressure change across the bump. Radiused ends are good if airspeed is a little on the high side. If the airspeed is really low, some of these details don't matter much. All we're trying to do is tune the cabinet with Helmholtz resonance, and to avoid port airspeed from becoming excessive at high woofer displacements.
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