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Sun, 09 November 2003 14:41

Wayne Parham
Messages: 18894
Registered: January 2001

Illuminati (33rd Degree)

According to "Great Plains Audio," Altec specs for the 421-8H are as follows:

Vas = 12.8ft3
Fts = 32Hz
Qts = 0.25

Based on these values, PiAlign recommends a 3.2ft3 cabinet tuned to 48Hz using a port that's 7.5" long, 4.6" tall and 8.2" wide.

Response is nice and flat with 60Hz f3 and 40Hz f10.

If this isn't the driver you have, you might consult the Altec T/S Specifications chart at Great Plains Audio to obtain the specs you need.

		Pi seven port size using Altec 421A 15" Drivers By: jumpin on Sun, 09 November 2003 11:45
		Re: Pi seven port size using Altec 421A 15" Drivers By: Wayne Parham on Sun, 09 November 2003 14:41
		Re: Pi seven port size using Altec 421A 15" Drivers By: Manualblock on Sun, 09 November 2003 17:53
		If I am not mistaken... By: Shanko on Tue, 11 November 2003 18:36

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