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Re: Port air speed. [message #35805 is a reply to message #35802]

Thu, 04 April 2002 14:55

Wayne Parham
Messages: 18726
Registered: January 2001

Illuminati (33rd Degree)

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.

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[Message index]

		Port air speed. By: dbeardsl on Thu, 04 April 2002 11:34
		try to avoid operation below Fs By: Sam P. on Thu, 04 April 2002 12:09
		Re: Port air speed. By: Wayne Parham on Thu, 04 April 2002 14:55
		we don't need no stinking subject. By: dbeardsl on Thu, 04 April 2002 23:07
		20Hz High pass filter By: Wayne Parham on Fri, 05 April 2002 00:10
		fanning air vs. imparting a compression wave By: Sam P. on Fri, 05 April 2002 10:05
		Re: Port air speed.IS BASED ON MAX POWER ON ISD By: mhammill on Thu, 04 April 2002 16:54

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