Sae 5000 a owners manual

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EAE

Scientific Audio Electronics, Inc.

5000A

Impulse Noise Reduction
System

OWNERS MANUAL

Congratulations on your selection of 'he new SAE 5000A - the 2nd generation
Impulse Noise Reduction System from the same company who first intro-
duced such a product four years ago. Your 5000A is another ofthe innovative
high technology products which have made SAE world renown as the largest
manufacturer of State of the Art audio products.

Since the 5000A is an extremely unique product and since a great deal of care
and quality materials have gone into its design, we urge you to read this
Owners Manual thoroughly in order to realize maximum pleasure from

your system.

WHAT IS IMPULSE NOISE?

One of the unavoidable obstacles
which has challenged recorded
music since the very first phono-
graph is impulse noise - those
annoying pops and clicks" which
[in an alarming number of instances)
appear even on a brand new record
and increase with record play.
These noises are the result of
scratches, dirt, mistracking, warp-
ing, static electricity and even
normal record wear. The fact that
they are generally unavoidable
doesnt make them any less un-
nerving.

Like its predecessor, the SAE 5000A
has been designed specifically to
reduce these impulse noises and
help you to once again enjoy even
those irreplaceable records you
might have written off as hopelessly
scratched.

Other types of background noise
such as tape hiss and static sound
often heard between cuts on an
album are of an entirely different
nature and therefore not affected
by the 5000A. There are several

excellent units currently available
which can greatly reduce this type
of noise. These systems are quite
compatible with the 5000A and
when used together the two can
effectively eliminate almost any
type of program noise. However,
should you choose to use the 5000A
in conjunction with a surface noise
[hiss] reduction system, be sure to
position the 5000A first in line. .

DESIGN 8: PHILOSOPHY

Since the impulse noise is audibly
different from music, it therefore
must contain some unique proper-
ties. After extensive electronic
evaluation and statistical analysis,
two such unique characteristics
were identified.

The first of these characteristics is
an unusually rapid attack and decay
time. While a few musical instru-
ments have an equally fast attack
time, their decay times are much
slower. The second unique charac-
teristic is the tendency of impulse
noise to be out-of-phase while the
actual musical content of the pro-
gram is primarily in-phase.

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A logic circuit within the 5000A
constantly monitors the musical
program, searching for the unique
combination. of conditions which
indicate an impulse noise. When
such conditions are detected, 3
Noise Removal Circuit automati-
cally shuts down the music. A
Music Restoration Circuit which
has been evaluating the musical
information surrounding the
impulse noise, then replaces the
impulse noise with an extrapolation
of the music it has been monitoring.
The result is a significant reduction
of impulse noise with no sacrifice of
musical continuity.

Unlike other noise reduction sys-
tems, the 5000A does not alter the
dynamic range or frequency re-
sponse of the program. However, it
cannot return any fidelity lost
through record abuse. Your dealer
can suggest some of the many fine
record care products available
today. Remember, your records are
one of your most expensive and
important investments in audio. If
handled with care. they will pro-
vide many hours of enjoyment; and
as the unavoidable impulse noises
appear (and they will appear), the
SAE 5000A will reduce them to a
minimum.

UNPACKING

As part of our system of strict
quality control, your 5000A was
thoroughly inspected before leav-
ing the factory to ensure a flawless
appearance. The shipping carton
and packing materials were care-
fully designed to reduce to a mini-
mum the possibility of transporta-
tion damage. Should you find that
your unit has been damaged, notify
your dealer immediately so that a
written claim to cover the damages
can be initiated.

THE RIGHT TO ANY CLAIMS
AGAINST A PUBLIC CARRIER
CAN BE FORFEITED IF THE
CARRIER IS NOT NOTIFIED

PROMPTLY AND IF THE SHIP-
PING CARTON AND PACKING
MATERIALS ARE NOT AVAIL-
ABLE FOR INSPECTION BY THE
CARRIER. SAVE ALL PACKING
MATERIALS UNTIL THE CLAIM
HAS BEEN SETTLED.

We strongly suggest that you save
the carton and packing material for
use should you ever need to ship the
unit in the future.

CAUTION: To prevent fire or
shock hazard, do not expose this
equipment to rain or moisture.

CONNECTIONS

Your SAE 5000A is designed to be
connected into the tape monitor
loop of a preamplifier, integrated
amplifier, or receiver. If your
control amplifier or receiver does
not have a tape monitor function.
some modification of the control
amplifier/receiver may be neces-
sary. If this is the case,please con-
sult your dealer.

The 5000A may be installed between
a preamplifier and power amplifier.
However, the sensitivity control on
the 5000A will have to be readjusted
with every change in volume level.
At very low volumes, the output
from some systems may not be ade-
quate for the 5000A to be usable
even at its most sensitive setting.
FOr these reasons, we strongly
suggest a tape monitor loop connec-
tion whenever possible.

NOTE: Before making any connec-
tions, turn off the power to all com-
ponents.

(1) Disconnect any tape recorder or
signal processing accessory you
may already have installed into the
tape monitor loop of your control
amplifier or receiver. (Instructions
on how to reconnect this equipment
follow under #4.) lfyour system has
multiple tape monitor loops, the
5000A should be installed into the
first one.