Okay, but that's a bit more technical than I think we need to go. What =
I meant by "directional" was the little dome tweeters which, as you say, =
you can aim at your ears...or something of the like...
----------
From: donmathis@lucent.com[SMTP:donmathis@lucent.com]
Sent: Tuesday, September 10, 1996 9:55 AM
To: Jason F. Dutt
Cc: mgs@autox.team.net
Subject: Re: Stereo installation...?
>
Unless you can mount the tweeters so they are aimed at your ears, don't =
even
bother. The directivity of a piston sound source is (if I remember =
right) :
theta =3D .61*lambda/a*a
where, theta is the half angle, lambda is the wavelength, and a is the
effective radius of the transducer. A typical tweeter at 10 khz has a =
main
beam angle of approximately 10-20 degrees. Most people mount these in =
the
door and beam the sound right into their knee. Instead spend your money =
on
a better built mid range that will survive the heat of the automobile
environment.
=20
Don Mathis,Ph.D.
LUCENT TECHNOLOGIES
donmathis@lucent.com
'61 MGA '37 Bentley
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