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From: brent@itm.UUCP (Brent)
Newsgroups: net.audio
Subject: reposting cassettes - part 2
Message-ID: <155@itm.UUCP>
Date: Tue, 3-Apr-84 08:26:11 EST
Article-I.D.: itm.155
Posted: Tue Apr  3 08:26:11 1984
Date-Received: Thu, 5-Apr-84 01:47:42 EST
Organization: In Touch - Atlanta, GA
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    Cassettes - Part 2

    Several companies make in-cassette machines: Recordex, Telex,
Pentagon, Alpha.  These are known as "copiers", or voice-grade machines.
Frequency response may be 100Hz to 8kHz, +- 5dB.  Not so hot.  They
range from making only one copy at a time to add-on slave units that
can do up to 50.  Tape speeds are around 30 ips.  Head life 4,000 to
50,000 tapes, cost $400 and up.

    The only true "duplicator" or music-quality in-cassette equipment
is Infonics.  They're up in Michigan City, IN.  They're a small company,
about seven employees, owned by Paul Lloyd and Carol Landt.  Paul and
Carol's relationship is a subject of much speculation and amusement
in the audio world.  It seems to be more than business, yet has remained
stable for a good many years.  They do a lot of business in Hong Kong
because they like to travel.  

     Anyway, the equipment:  it's expensive:
a cassette master playback unit and a four-position slave will cost
about $12,000.  Tape travels at 20 ips (wierd speed), frequency
response 40Hz to 20kHz, +- 4dB (I've measured it myself), wow and
flutter 0.03%.  Pretty good.  But the most impressive thing is:
no Infonics cassette record head has *ever* worn out.  I know.  We
have used slave units with serial numbers 2, 3, 4, and 5 here
for many years, and the heads are still perfect.  Don't tell me
it can't be done.

    More later,
-- 
            Brent Laminack  (akgua!itm!brent)