A SYSTEMS DM434, User Manual

Page: 5 / 16

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�
1 2 3 4 5 7 6 8 9 10 11