A SYSTEMS DM434 User Manual - page 5
5
DM434
English
FRONT PANEL DESCRIPTION
1. Mid Control
The MID EQ is set at 800Hz with +/-15 dB of boost or
cut available Adjust this knob clockwise to add fullness
to the microphone Adjust the knob clockwise to reduce
excessively hard or ‘telephone-like’ sounds
2. Treble (High Frequency) Control
The TREBLE control’s center frequency is set at 8 kHz with
+/-15 dB of boost or cut available. Adjust this knob clockwise
to add crispness or clarity to the microphone Adjust the
knob counterclockwise to reduce hissing or sibilance
3. Volume Control
This knob controls the level of the balanced microphone
input that is fed to each zone (and utility when MIC is
selected) the output range is set from -∞ to “MAX” (about
+55 dB). Turn the knob clockwise to boost the microphone
volume
4. Depth Control
Turning this knob clockwise will gradually decrease the
zone music source output and change the paging depth to
make the microphone output louder than the music source
5. Zone Volume/Level Control
Adjust this control to set the level of audio that is sent to
each zone. The gain range is -∞ to “MAX” (about +20dB).
Turn the knob clockwise to increase the volume level
and counterclockwise to decrease the level This control
does not affect the actual level of the music input to the
mixer; rather it adjust the output level that is sent to the
corresponding zone
6. Source Switch
This switch allows you to select one of three audio sources
to be sent to the zone output. A signal source must first be
connected to the input on the back panel (see “SOURCE
INPUT” section)
7. Mono Button
When this button is pressed, the L&R zone outputs are
summed to mono
8. Utility Level
Adjust this control to set the level of audio that is sent to the
utility zone. The gain range is -∞ to “MAX” (about +20dB).
Turn the knob clockwise to increase the volume level and
counterclockwise to decrease the level This control does
not affect the actual level of the audio inputs, rather it simply
adjusts the level sent to the utility zone
9. Source Button
This switch allows you to select the source of the utility
output connector You are able to choose from one of
the three line inputs and the microphone input A signal
source must first be connected to the appropriate input
on the back panel (see “SOURCE INPUT” and “PAGING
MICROPHONE” sections)
10. Emergency Trim
The TRIM knob adjusts the level of the emergency audio
input When the 24VDC control circuit is activated by an
external device the red LED light illuminates and all zone
and utility source outputs are replaced by the emergency
audio input If the 24V DC control circuit is activated but
there is no emergency audio input, the emergency audio
input source will be the paging microphone
11. Power Switch
This switch turns the power for the mixer on and off. The
unit must be connected to an appropriate AC mains power
supply to be turned on
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