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Appendix
B:
Specifications
INPUT
Impedance:
greater
than
10
k
ohms
active
balanced:
RF suppressed
LEVEL:
-I5d8m
produces lOdB
gain
reduction
with
ATTACK TIME
control centered,
INPUT
AITEN
control
fully
CW,
and RATIO
control
at infinity-to-one
OUTPUT
Impedance:
approximately 100 ohms,
electronically
balanced
to
ground; RF suppressed
Level:
+4dBm
nominal; absolute
peak overload
occurs
at
+26dBm
FREQUENCY
RESPONSE
±0.25dB
20-20,000
Hz below
limiting
and
de-esser thresholds
COMPRESSOR/LIMITER SECTION
Attack Time:
manually
adjustable
in
approximate range
of
500us
to
200ms;
automatically scaled
by program
content
Release
Time:
adjustable
in
approximate
range
of
0.8dB/sec
to
20dB/sec;
automatically
scaled
by program
content. Switch-selectable
LINEAR and
EXPONENTIAL
release
shapes.
Compression
Ratio: adjustable
from
2:1
to infinity-to-one at threshold.
Lower
ratios
automatically increase
beyond
threshold.
Range Of
Gain
Reduction:
25dB
Tracking
Of
Multiple
Channels: ±0.5dB
Total
Harmonic
Distortion
(ATTACK and
RELEASE TIME
controls
centered;
infinite
RATIO;
l5dB
gain reduction):
less
than
0.03%
@1
kHz.
Typically
0.
1
1
%
@20Hz;
0.02%
@l00Hz.
0.01%
@lkHz; 0.04% @10kHz.
SMPTE
IM
Distortion
(controls set as
above;
60/7000HZ
4:1;
!5dB
gain reduction):
typically
0.05%
DE-ESSER SECTION
Attack Time:
approximately
1
ms
Release Time: approximately
30
ms
Harmonic
Distortion:
less
than
0.05%
THD
introduced
by
de-essing action
@I0kHz
Available
Gain
Reduction:
greater
than
25dB
SYSTEM NOISE
RMS
noise
in
20-20kHz bandwidth
better
than
85dB below
output
clipping
threshold
for
any
degree
of gain reduction;
90dB
typical.
OPERATING CONTROLS
Compressor/Llmlter
INPUT
ATTENUATOR
COMPRESSION
RATIO
ATTACK TIME
RELEASE TIME
RELEASE
SHAPE
GATE
THRESHOLD
OUTPUT
TRIM
IDLE
GAIN
COMPRESSOR/LIMITER OPERATE/DEFEAT
OUTPUT
LEVEL (REAR PANEL)
De-Esser
THRESHOLD
DE-ESSER
OPERATE/DEFEAT
General
STEREO
COUPLING
(424A
only)
POWER ON/OFF
INDICATORS
Compressor/Limiter
GAIN REDUCTION METER
GATED
LED
VCA
LEVEL
METER
De-Esser
NORMAL
De-essing
LED
HEAVY
De-essing
LED
Power
Requirement
115/230
VAC
±
10%;
50-60HZ.
U-ground
power
cord attached;
RF
suppressed
Dimensions
19"
|48.3cm)
wide
x
3.5"
(8.9cm/2
units)
high
x 10"
(25.4cm)
deep
Operating Temperature
0-45°
C
Warranty
One
year,
parts
and
labor.
Subject
to limitations
set forth
in
our Standard Warranty
Agreement.
43
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