Connecting The Unit - IMG STAGELINE MPA-202 Mode D'emploi

4 Connecting the Unit

Switch off the MPA-202 and the units to be con-
nected before the connections are made or
changed.
Hints
1. The XLR inputs and outputs should be con-
nected in a balanced way because this way
interference (caused by a long cable) can
better be suppressed than with unbalanced
connection.
2. With unbalanced connection, the contacts 1
(ground) and 3 (negative signal) of the XLR
plugs should be short-circuited. By the ser-
vobal anced circuit the 6 dB level loss will
then automatically be equalized which oth-
erwise occurs with unbalanced connection.
Connection
1) Connect the microphones to the inputs BAL.
INPUT (10). The XLR jacks have a latching.
To pull out a plug, press the PUSH lever.
2) Connect the line inputs of the subsequent
unit (e. g. amplifier, mixer) to the XLR out-
puts (12) and / or the phono inputs (11).
3) Finally connect the low voltage plug of the
supplied plug-in transformer to the jack
"15 V~" (7) and the transformer to a socket
(230 V~ / 50 Hz).
5 Operation
1) When using phantom-powered microphones,
the phantom power (+12 V) must be switched
on. For this purpose press down the button
PHANTOM (9).
Attention!
If the phantom power is switched on, no
microphones with unbalanced output must
be connected as they may be damaged.
2) Do not switch on the unit with the POWER
switch (8) before activating the phantom
power. The green LED ON (6) lights up.
Then switch on the following unit.
3) With the rotary switch GAIN (5) adapt the
amplification of the microphone signal to the
required input level of the following unit. For
fine adjustment actuate the control FINE
TUNE (2). The LED PK (4) for peak value in-
dication must shortly light up with music
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may be reproduced in any form or by any means for any commercial use.
4) To suppress interfering signals of low fre-
5) If the phase of the microphone signal must
6) After operation switch off the MPA-202 with
6 Specifications
Frequency range: . . . . . . . 20 Hz (±1 dB) up to
Inputs
sensitivity at
1 V output voltage . . . . . 0.16 – 150 mV adjustable
impedance: . . . . . . . . . . 4.4 kΩ with bal. connection,
phantom power: . . . . . . . +12 V
Outputs
XLR, servobal.: . . . . . . . 1 V/14 V max., 100 Ω
phono, unbalanced: . . . . 1 V/ 7 V max., 600 Ω
Amplification factor: . . . . . 15 – 75 dB
Channel seperation:. . . . . > 80 dB
S / N ratio: . . . . . . . . . . . . . > 68 dB, unweighted
THD:. . . . . . . . . . . . . . . . . < 0.01 %
High pass filter (Low Cut): 15 – 240 Hz, 6 dB / oct.
Infrasound filter: . . . . . . . . 15 Hz, 18 dB / oct.
Power supply:. . . . . . . . . . 15 V~ / 300 mA via supplied
Dimensions, weight: . . . . . 116 × 55 × 135 mm, 1.2 kg
Subject to technical modifications.
® INTERNATIONAL GmbH & Co. KG. No part of this instruction manual
piec es of highest volume. If it lights up for a
longer time, turn back the control FINE
TUNE or the switch GAIN.
quencies, adjust with the control LOW CUT
(1) the frequency at which the transmission
range is to start.
be turned by 180° (inverted), press down the
button INVERT (3). In case of doubt deter-
mine the optimum switch position by press-
ing and releasing the button alternatively.
This is e. g. the case with best bass repro-
duction in the master signal of the signal
sources (microphones).
the POWER button. If it is not used for a
long er time, also disconnect the plug-in
transformer from the socket. Otherwise
there is an unnecessary current consump-
tion.
20 kHz (±0.5 dB)
2.2 kΩ with unbal. connection
plug-in transformer
at 230 V~ / 50 Hz / 5 VA
GB
7