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Front Panel Description
INPUT LEVEL indicators: With signal applied, the +4 dBu
LED may light occasionally. If the OL (overload) LED flashes,
turn the output level down on the previous device.
GATE THRESHOLD control sets the point at which the Input
signal level causes the Gate to become active.
_____________________________________________
COMPRESSOR THRESHOLD control sets the point at
which the Input signal level causes the Compressor to become
active. See Figure 1 on page Manual-4.
COMPRESSOR RATIO control: Once the Threshold is
exceeded, the Ratio of input change to output change is deter-
mined by this control. The compressor has no effect when set
at 1:1. But at 10:1, it takes a 10 dB input signal increase above
the Threshold to produce a 1 dB increase in Output Gain. See
Figure 2 on page Manual-4.
GAIN REDUCTION LEDs show the amount of average signal
reduction in dB. This aids in setting the THRESHOLD and
RATIO controls by showing how much compression is occur-
ing.
_____________________________________________
BYPASS switch compares the compressed and non-compressed
signal. There is one for each channel. The INPUT LEVEL
indicators remain active regardless of switch position.
GATE
OUTPUT LEVEL control increases or decreases the output
-50
gain of each Channel by 15 dB. In the center detent, gain will
-60
-40
be unity.
-70
-30
LINK switch activates both Compressors when either channel's
-80
-20
signal exceeds the set Threshold, preserving stereo imaging.
dBu
Switch this ON when using stereo material. The channel 1
THRESHOLD
controls become the Master when this switch is active, render-
ing the channel 2 controls and indicators dead.
_____________________________________________
Channel 2 controls duplicate the controls in channel 1. These
are not active if the LINK switch is engaged.
INPUT
2
LINK
+4
MASTER
SLAVE
LEVEL
Manual-2
INPUT
1
+4
LEVEL
COMPRESSOR
-10
-20
0
1.7
-30
10
1.2
-40
20
1
dBu
THRESHOLD
RATIO
GATE
-50
-10
-60
-40
-20
-70
-30
-30
OL
-80
-20
-40
dBu
dBu
THRESHOLD
THRESHOLD
GATE
-50
-60
-40
-70
-30
OL
-80
-20
dBu
THRESHOLD
3
2
6
3
12
10
24
:1
GAIN
REDUCTION
BYPASS
COMPRESSOR
3
2
6
0
1.7
3
12
10
1.2
10
24
20
1
:1
GAIN
RATIO
REDUCTION
BYPASS
When the POWER LED is lit, the DC22S is connected to a
100-240 VAC source and ready to rock.
INPUT
1
+4
OL
LEVEL
COMPRESSOR
-10
-20
0
1.7
-30
10
1.2
-40
20
1
dBu
THRESHOLD
OUTPUT
0
-6
6
-12
12
-15
15
dB
LEVEL
OUTPUT
0
-6
6
-12
12
-15
15
dB
LEVEL
GATE
-50
-60
-40
-70
-30
-30
-80
-20
dBu
THRESHOLD
3
2
6
3
12
10
24
GAIN
:1
RATIO
REDUCTION
BYPASS
LINK
MASTER
SLAVE
DC22S
DYNAMIC
CONTROLLER
POWER
CO
-10
-20
0
-40
20
dBu
THRESHOLD
OUT
-6
-12
-15
d
LE
INPU
2
+4
LEVE
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