Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 8/23/84; site ucbcad.UUCP
Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!whuxl!whuxlm!harpo!decvax!ucbvax!ucbcad!klein
From: klein@ucbcad.UUCP
Newsgroups: net.audio
Subject: Re: Speaker Building
Message-ID: <162@ucbcad.UUCP>
Date: Wed, 27-Mar-85 12:18:07 EST
Article-I.D.: ucbcad.162
Posted: Wed Mar 27 12:18:07 1985
Date-Received: Thu, 28-Mar-85 02:46:42 EST
Distribution: net
Organization: UC Berkeley CAD Group, Berkeley, CA
Lines: 13

Also an important effect is the breakup of the speaker cone.  Large
cones at high frequencies can no longer be considered pistons.  Instead
they will have little areas all around the surface that wiggle, each
one 180 deg out of phase with its neighbor.  Bose's 5 inch drivers
may be great (I've heard they are) for say 500Hz to 3kHz or so, but
there's going to be some frequency where they no longer look like pistons.
Cross over well before you get to that frequency.  No equalizer on earth
can help this problem.  Imagine running your amp output through a comb filter!
-- 

		-Mike Klein
		...!ucbvax!ucbmerlin:klein	(UUCP)
		klein%ucbmerlin@berkeley	(ARPA)