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GAIN REDUCTION:
Reads
the gain
of
the
VCA,
from 0
to
-
25dB.
Shows
the
effect
of
any
control
but
OUTPUT
TRIM
and
DE-
ESSER.
v
r
INPUT
ATTEN.:
Adjusts
drive
to
compres-
sor/limiter,
determining
amount
of
G/R.
-
ATTACK
TIME:
Adjusts
speed
of
response
to
input
level
increase.
Fast:
peak
limiter
&
compressor
Slow:
compressor
only
*
•
UN
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*
0
-SHO>«-fO-?3
0
»
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GATE
THRESH.:
Determines
the input
level
that
causes "gating";
VCA
gain
moves
slowly
to
IDLE
GAIN
control setting.
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PAST
UOW
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PAST
UOW
DATED COMPREBBOR/LIMITER
OUTPUT
TRIM:
Adjusts
VCA
gain
to
control
or
prevent
clipping;
its
ef-
fect
is
seen on
VCA
LEVEL
meter;
not
an
output
at-
tenuator (Output Attenuator
located
on
rear).
DE-ESSER OPERATE/
DEFEAT:
Activates or defeats de-
esser
control
circuitry.
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OUTPUT
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COMP/LIM
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ms
OE-EBBER
COUPLED/INDEP:
Couples
A
and B
gain
and
gating
circuits for
stereo
tracking.
•
coun
ro
0
•NO**'
%
•
ON
PIODBL
4B4A
COMPR.
RATIO:
Adjusts
compression from
"looser'' (2:1)
to
"tighter"
(°°:1).
REL.
SHAPE:
Lin:
com-
pressor releases
at
cons-
tant rate
Exp: release
starts
slower,
then
speeds up
REL. TIME:
Adjusts
speed
of
gain
in-
VCA
LEVEL:
Reads peak
operating
level
crease
when
output
level
is
of
VCA.
Clipping
occurs
below
threshold
of
com-
pression.
above
approximately
"
+
2 ".
IDLE GAIN:
Determines
VCA
gain
when
unit
is
gated
(OPERATE
mode)
or
anytime
unit
is
DEFEATED.
OPERATE/DEFEAT:
Activates
or
defeats
comp/
lim control
circuitry.
Does
not
bypass any
circuitry.
DE-ESSER
SENSITIVITY:
Adjusts threshold
of
de-
essing.
CAUTION
O
P
ELECTRICAL
SHOCK
DO
NOT
PEWOVn
COVER.
NO
USER
SERVICEABLE PARTS
INSIDE
REFER
SERVICING
TO
QUALIFIED
SERVICE
PERSONNEL
Hi
^
WARNING
TO REDUCE
THE
RISK
Of
FIRE
O*
f
LFCTUK
At
SHOCK
DO
N»
f
EXPOSE
THIS
APPLIANCE
TO
BAIN
OR
MOISTURE
-
OR CONTINUED
PROTECTION
AG»'N«,t
FtWE
HAZARD
RfPlACf
ONLY WITH
SAME
TYPE
FUSE
SAC, S/S
FOR
115V
MAINS
I/4A
FOR
JJOV
MAINS
I/I
A
®
Sr
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MODEL
424A
SHOWN
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