Posted by Wayne Parham on April 04, 2002 at 15:55:42

In Reply to: Port air speed. posted by dbeardsl on April 04, 2002 at 12:34:43:

Maximum port airspeed is only realized at frequencies near fb, and only at high power. I've run these speakers at full power for extended periods and never heard any turbulence at all. Above fh the woofer is actually moving very little, so the air in the port moves at much lower velocity.

Honestly, I think the program is wrong, or something has been entered improperly. The airspeed is nowhere near 260 miles per hour, even at fb and full power. I don't think it exceeds 60-70 miles per hour, which is low enough you can't hear any turbulence. It has never even been close enough for me to investigate.

• we don't need no stinking subject. - dbeardsl 00:07:01 04/05/02 (2)
  • fanning air vs. imparting a compression wave - Sam P. 11:05:24 04/05/02 (0)
  • 20Hz High pass filter - Wayne Parham 01:10:38 04/05/02 (0)