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From: michaelk@tekmdp.UUCP (Michael Kersenbrock)
Newsgroups: net.audio
Subject: Re: Right.On,Greg!
Message-ID: <2152@tekmdp.UUCP>
Date: Fri, 19-Aug-83 15:52:04 EDT
Article-I.D.: tekmdp.2152
Posted: Fri Aug 19 15:52:04 1983
Date-Received: Sat, 20-Aug-83 08:57:22 EDT
References: whuxk.254
Lines: 28

In reference to the CD vs Linn (analogue) test that Linn did. . .
Some of you may have noticed the Linn ad in Audio magazine that quotes some
of those golden-eared folk that tested the CD vs. their turntable. One
of them said something like "the CD sounded better that I thought it
would but ...".  I think this is extraordinary of Linn to publish that
quote in their ad, because it points out very dramatically and graphically
that the deck was stacked, and the results preordained. 
    The results could be valid even if the "test" wasn't because, 
some CD *discs* ARE rather poor.  What the ad tells me is that Linn is
aware that they are in big trouble.  They are acting in what appears to
be in desparation awful early in the "battle".
    Also note that the ringing seen in both in the 1Khz square wave CD
reviews and even more so in MC cartridge reviews is not 1Khz ringing,
but more like 20 Khz ringing in response to the step function presented
by the 1 Khz *square wave* test signal.  I agree that we need numerical
means to tell CD players apart -- in as much -- we are now starting
to have some of the same problems of telling apart amplifiers that
have THD's of 0.001% and 0.0008%. 
   By the way, when these (listening) tests are done, are they using
new LP disks being played for the first time or are these that have
been played & handled for 5 years (and perhaps cleaned of dust a time
or few over the years, etc) when compared with a CD?  (where 5 years of
*continuous* playing wouldn't touch the disk although the player may get
a bit tired).

Mike (an obvious CD owner) Kersenbrock
Tektronix Microcomputer Development Products
Aloha, Oregon