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From: mohler@druxu.UUCP (MohlerDS)
Newsgroups: net.audio
Subject: Re: A-B Tests
Message-ID: <1525@druxu.UUCP>
Date: Tue, 14-May-85 10:51:39 EDT
Article-I.D.: druxu.1525
Posted: Tue May 14 10:51:39 1985
Date-Received: Wed, 15-May-85 01:12:55 EDT
References: <charm.659>, <361@boulder.UUCP>
Organization: AT&T Information Systems Laboratories, Denver
Lines: 19

This sounds like an arguement that Digital Audio Magazine outlined
last month. If you believe this (dac in the speaker) stuff that is
up to you. It may make sense to move the dac up towards the mike
and it may make sense to have one very high quality dac that your
pcm recorder and cd feed into (ala sony's new set-up), but a dac in the
transducer...not soon! Digital Audio Mag. went so far as to infer that
there would be a power dac that would supply the current to the transducer
which sounds to me like the author in the magazine does not know of what
they speak. I am a firm believer that digital audio is here to stay, but
I am also believe that an analog amplifier is impossible to get around.
Lets face it, a transducer as we know them requires current and an amp
has to provide it. Putting the amp and a dac in the speaker will never
gain industry backing and if someone has the poor judgement to build
one commercially it will go the way of the powered Advent, Four channel
and dino's (the big critters not the car).

			David S. Mohler
			AT&T - ISL @ Denver
			!druxu!mohler