Connecting The Units; Operation - IMG STAGELINE MPX-22 Bedienungsanleitung

3 Applications
GB
The stereo DJ mixer MPX-22 with two stereo input
channels and a DJ microphone connection is suitable
for any private or professional DJ applications. The
mixer can either be placed as desired or be installed
into a console.

4 Connecting the Units

Prior to connecting any units or to changing any ex-
isting connections, switch off the mixer.
1) Connect the stereo audio sources to the corre-
sponding phono input jacks of the channels CH 1
and CH 2 (white jack L = left channel; red jack R =
right channel):
– Connect CD players or other units with a line
level output (e. g. minidisk recorder, tuner, cas-
sette recorder) to the jacks CD/LINE (22)
– Connect turntables with magnetic system to the
jacks PHONO (23). Connect the ground connec-
tion of the turntables to the terminal screw GND
(25) above the jacks.
2) Connect a DJ microphone to the 6.3 mm jack DJ
MIC (11) or (24).
3) Connect the amplifier to the phono master output
MASTER (19).
4) If a monitoring system is available, connect the
amplifier of the monitoring system to the stereo out-
put BOOTH (20).
5) For audio recordings, connect the recorder to the
output REC (21).
6) The input channels can be monitored via stereo
headphones (impedance ≥ 8 Ω) ahead of the faders
(12) [PFL = pre-fader listening; see chapter 5.5
"Pre-fader listening to the channels"]. Connect the
headphones to the jack PHONES (9).
7) Finally connect the power supply unit to the 3-pole
jack 15 V~/1.5 A (18) for the power supply; then
connect the power supply unit to a mains socket
(230 V~/50 Hz).

5 Operation

Prior to setting the mixer into operation, it is recom-
mended to set the master control (2) and the monitor
control BOOTH (3) to minimum to prevent switching
noise. Switch on the mixer with the switch POWER (1).
The LED POWER ON (7) lights up. Then switch on the
units connected.
Caution! Never adjust the audio system or the head-
phones to a very high volume. Permanent high vol-
umes may damage your hearing! The human ear will
get accustomed to high volumes which do not seem
to be that high after some time. Therefore, do not fur-
ther increase a high volume after getting used to it.
After operation switch off the mixer with the switch
POWER. If the mixer is not used for a longer period,
disconnect the mains plug of the power supply unit
from the socket as the power supply unit will have a low
power consumption even with the mixer switched off.
8
5.1 Basic adjustments
5.1.1 Preparation
1) First set the two gain controls (16), all 9 equalizer
controls (13) and (17) to mid-position.
2) For the time being, set the level control for the
microphone channel (14) to the left stop.
3) Set the control MASTER (2) to approx.
maximum, e. g. to position "7".
5.1.2 Level control of the channels CH 1 and CH 2
1) With the selector switches (6), select the respective
input to which the audio source is connected or, if
two units are connected to a channel, select the
desired unit.
2) Feed an audio signal (test signal or music piece) to
each channel.
3) Set the corresponding fader (12) approximately to
the position "7".
4) Adjust the input to an optimum level with the corre-
sponding control GAIN (16): The LEDs "0 dB" (8)
should light up with music passages of high
volume. If required, the gain control can be fully set
to "MIN" or "MAX".
5.1.3 Sound adjustment
1) For channel CH 1, adjust the sound with the equal-
izer controls (17) by boosting (max. 15 dB) or
attenuating (up to 30 dB!) the high frequencies
(control HIGH), the midrange frequencies (control
MID), and the bass frequencies (control LOW).
After the sound adjustment, readjust the channel
level with the corresponding control GAIN (16), if
required.
2) Repeat the procedure for channel CH 2.
5.1.4 Adjusting the output level
With the control MASTER (2), control the master out-
put (19) to an optimum level by means of the output
VU-meter (8). Usually, there is an optimum level when
the VU-meter indicates values in the 0 dB range at
average volume. However, if the output level at the
master output is too high or too low for the subsequent
unit, open or close the control accordingly.
5.2 Crossfading between channels CH 1 and CH 2
The crossfader (10) allows crossfading between the
channels CH 1 and CH 2.
Crossfader moved to the left:
fade-in of channel CH 1,
fade-out of channel CH 2.
Crossfader moved to the right:
fade-in of channel CH 2,
fade-out of channel CH 1.
5.3 Mixing the audio sources connected
For the same volume of channel CH 1 and CH 2, move
the crossfader (10) to mid-position.
For a lower volume of one channel, move the
crossfader further to the left or to the right accordingly,
or set it to mid-position and adjust the desired volume
ratio with the channel faders (12).
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