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From: fish@ihu1g.UUCP (Bob Fishell)
Newsgroups: net.audio
Subject: dbx info provided ...
Message-ID: <120@ihu1g.UUCP>
Date: Thu, 5-Jan-84 10:46:50 EST
Article-I.D.: ihu1g.120
Posted: Thu Jan  5 10:46:50 1984
Date-Received: Fri, 6-Jan-84 02:40:57 EST
Organization: AT&T Bell Labs, Naperville, IL
Lines: 31

In reply to Jeff Bowles:  I have been using the dbx model 224 encode/decode
system for about three years now, and I have little but praise for it.  Using
Maxell UD35-90 tape at 7.5 ips, I have been able to make recordings that are
completely free of noise and distortion, even from such demanding sources
as digital recordings.  dbx will give you a usable dynamic range over 90dB
(more than you will need).  Furthermore, there is little perceptible graininess
introduced into the recording; it is virtually indistinguishable from the
original.  It can be used with any record/playback system, but is more or less
wasted on cassettes, unless you really need the improvement in dynamic range.

If you play cassettes in your car, you won't want to encode them with dbx,
because the 2:1 compression and treble preemphasis make an undecoded recording
sound pretty wierd.  Some auto players are available with dbx, but the effect
is wasted in such a noisy environment.  I have found Dolby-B and metal tape
to be adequate for playback in my car.


The 224 fits in the tape monitor loop between the preamp/tape out outputs
and your deck(s).  The only thing tricky about it is adjusting the input
and output levels.  dbx provides adequate instructions for this, but they
must be followed carefully.

A nice fringe benefit from the 224 is a dbx disc decoding capability.  dbx
discs are perhaps the best analog audiophile recordings available.  
Unfortunately, they are hard to find, and titles are severely limited.

The best price you can get on a dbx system is about $225, mail-order.  You
usually haveeto call for quotations; you might find a better deal by poring
through the ads in the back of the audiophile mags and calling around for
prices.  dbx systems may be purchased locally (Chicago west) at Hi-Fi Hutch
in Villa Park.