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3 Safety Notes
The units (mixer and power supply unit) correspond to all relevant
directives of the EU and are therefore marked with
WARNING
The power supply unit uses dangerous mains voltage.
Leave servicing to skilled personnel only: Risk of
electric shock!
•
The units are suitable for indoor use only. Protect them against
dripping water, splash water, high air humidity and heat (admissible
ambient temperature range: 0 – 40 °C).
•
Do not place any vessel filled with liquid on the units, e. g. a drink-
ing glass.
•
The heat produced inside the mixer must be dissipated by air circu-
lation; never cover the air vents of the housing.
Do not operate the units and immediately disconnect the mains
•
plug from the socket
1. if one of the units or the mains cable is visibly damaged
2. if a defect might have occurred after a unit was dropped or suf-
fered a similar accident,
3. if malfunctions occur.
In any case, the units must be repaired by skilled personnel
•
Never pull the mains cable to disconnect the mains plug from the
socket, always seize the plug.
•
For cleaning only use a dry, soft cloth; never use water or chemicals.
•
No guarantee claims for the units and no liability for any resulting
personal damage or material damage will be accepted if the units
are used for other purposes than originally intended, if they are not
correctly connected or operated, or if they are not repaired in an
expert way. Likewise, no liability will be accepted for any data loss
as a result of operating errors or a defect or for any consequential
damage caused by this data loss.
If the units are to be put out of operation definitively, take
them to a local recycling plant for a disposal which is not
harmful to the environment.
MIC1
Input
Channel
MIC 1
Fig. 3 Example of application
8
.
OUT 7
OUT 8
L/R MIX
Output
OUTPUT
Patch
OUT7
L&R
OUT8
4 Example of Application
The connections and settings required are illustrated in a simple ex-
ample (fig. 3): A dynamic microphone is to be used for making an
announcement via an amplifier system. For this, the mixer is used as a
preamplifier and for adjusting the sound. The amplifier system consists
of a stereo power amplifier and two speakers.
This example is based on the factory settings of the mixer: All input
channels have been assigned to the sum channel; the sum channel
has been assigned to the outputs OUT 7 and OUT 8.
4.1 Connection
Before connecting, make sure that the amplifier system has been
switched off.
1) Connect the microphone to the input MIC 1 (15) on the rear of the
mixer using an XLR cable.
2) Connect the output OUT 7 (17) to the left input (e. g. "IN L") of
the stereo power amplifier using an XLR cable.
3) Connect the output OUT 8 (17) to the right input (e. g. "IN R") of
the stereo power amplifier using an XLR cable.
4) Connect the speakers accordingly to the outputs of the power
amplifier (e. g. "OUT L" and "OUT R").
5) Connect the power supply unit provided to the power supply jack
(22) and to a mains socket (230 V/ 50 Hz).
4.2 Operation
1) Keep the key
(2) pressed for approx. 5 seconds. After the start
screen, the screen (1) will show an overview of the input channels
IN 1– 8 (fig. 4). The mixer is now ready for operation.
2) Switch on the power amplifier.
3) Press the key SEL (10) to select the input channel "CH 1". The
key will be illuminated and the channel strip will be highlighted
in the overview.
4) To call up the view for matching the input (fig. 5), tap the field
"Mic IN" in the topmost section of the highlighted channel strip.
5) Tap the control in the field "Gain". A yellow frame will appear
around the numeric field.
6) Use the control knob ADJUST (6) to adjust the input sensitivity in
such a way that, when you speak into the microphone in a loud
voice, the bar graph at the bottom of the channel strip will change
from green to yellow at the very most. The LED VU meter (8) will
also indicate the signal level. When the bar graph reaches the red
level, turn back the control; otherwise, the signal will be distorted.
OUT L
IN L
OUT R
IN R
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