11
POWERLINX PLM-4 MIXER/PREAMPLIFIER
Description of Controls
1)
SENSITIVITY TRIM (SENS.)
Sets the microphone trigger level when
DIM
or
MUTE
is selected.
2)
DUCKING
This switch selects one of three options that determine how microphone announcements
affect the music level:
NONE
-
No ducking
DIM
-
Automatic 10 dB music level reduction while speaking into the microphone.
MUTE
- Automatically shuts the music off when speaking into the microphone.
3)
MIC
Adjusts the microphone level (equally distributed between left and right outputs).
Ducking does not affect this level.
4)
STEREO 1 STEREO 3
Adjusts the level of the STEREO RCA inputs. These inputs are suitable for CD players,
tuners, TVs, VCR audio, etc.
5)
BASS
Over all adjustment of low frequency levels.
6)
TREBLE
Over all adjustment of high frequency levels.
7)
MASTER
Adjusts overall level of all the mixed audio sources. Adjust to provide a suitable signal level to
the PLC4.1 controller or other following amplifier. Unity gain of the mixer is provided when
STEREO
input
and
MASTER
output levels are at 12 o'clock.
POWER
MIC
STEREO 1
STEREO 2
STEREO 3
BASS
TREBLE
MASTER
10
6
8
4
2
0
+12
+3
+6
-3
-6
0
-12
+12
+3
+6
-3
-6
0
-12
MUTE
DIM
NONE
SENS.
6
8
4
2
0
10
10
6
4
2
0
8
10
6
8
4
2
0
10
6
8
4
2
0
MIC
MODEL
PLM-4 MIXER
-
-
DUCKING
8
1
2
3
5
6
7
4
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