IMG STAGELINE MPA-102 Mode D'emploi page 7

– For battery operation, loosen the four screws at the
lower part of the housing and remove it. Connect
the battery poles to the battery snaps of the unit.
Insert the batteries into the support. Replace the
lower part of the housing and fasten it with screws.
If the unit is not in use for a longer period of time,
always remove the batteries to prevent damage
due to battery leakage.
2) Connect the microphone to the input (13). The XLR
jack has a lock. To unlock the plug, push down the
PUSH lever and remove the plug.
3) Connect the following unit with line level input (e. g.
amplifier, mixer) to the output (12).
For unbalanced connection, the contacts 1 (ground)
and 3 of the XLR inline jack should be bridged. The
servo-balanced circuit will automatically balance the
6 dB level loss which would occur with unbalanced
connection.
4) It is also possible to mix the amplified microphone
signal to a stereo line channel:
– To add the microphone signal to the stereo line
signal of another signal source, connect the signal
source to the input (11).
– To feed the output signal of the stereo line chan-
nel to a subsequent unit with line level input (e. g.
recorder), connect the unit to the output (10).
5) For power supply via the AC/AC adaptor, connect the
adaptor to a mains socket (230 V/ 50 Hz).
5 Operation
1) For a phantom-powered condenser microphone, ac-
tivate the phantom power (+24 V): Set the switch (3)
to the upper position.
ATTENTION Do not connect any unbalanced
microphone to the microphone input (13) when
the phantom power has been activated; the micro-
phone may be damaged.
2) Switch on the unit with the on / off switch (8). The LED
above the selector switch (1) lights green to indicate
operation.
3) Via the selector switch (1), the amplification of the
microphone signal can be ad justed in 11 steps from
20 dB to 70 dB. Adjust the selector switch according
to the de sired amplification. In case of overload, the
LED above the selector switch lights red.
4) For phase reversal of the microphone signal by 180°,
set the switch (4) to the upper position.
5) The mixing control (2) is used to add the microphone
signal to the stereo line channel. Turn up the con-
trol according to the de sired signal level. The output
signal of the stereo line channel is avail able at the
jacks (10).
6) The pan pot (7) is used to distribute the mono micro-
phone signal to the stereo line channel. The setting of
the pan pot defines the position of the microphone
signal in the stereo sound:
When the pan pot is in the central position, the signal
appears to be acoustically in the centre. The more the
pan pot is turned to the left (L) the more the signal
is acoustically moved to the left; the more the pan
pot is turned to the right (R), the more the signal is
moved to the right.
7) To suppress high interference frequencies with the
low-pass filter, set the switch (5) to the upper pos-
iton.
8) To suppress low interference frequencies with the
high-pass filter, set the switch (6) to the upper pos-
iton.
6 Specifications
Frequency range:. . . . . . .20 – 20 000 Hz
Gain
MIC INPUT : . . . . . . . .20 – 70 dB, switchable
STEREO LINE: . . . . . . .0 dB
Input sensitivity
for 1 V at the output:. . . .0.3 – 150 mV, switchable
Input impedance
MIC INPUT : . . . . . . . .2.2 kΩ
STEREO LINE: . . . . . . .10 kΩ
Phantom power: . . . . . . .+24 V
Outputs
PREAMP OUT : . . . . . .1 V/12 V max., 100 Ω
STEREO LINE . . . . . . .1 V/ 6 V max., 100 Ω
High-pass filter:. . . . . . . .100 Hz /−3 dB, 12 dB /oct.
Low-pass filter: . . . . . . . .12 kHz /−3 dB, 12 dB /oct.
S / N ratio
Mic: . . . . . . . . . . . . . .> 66 dB
Line: . . . . . . . . . . . . . .80 dB
THD: . . . . . . . . . . . . . . . .< 0.01 %
Power supply: . . . . . . . . .15 V (~) via supplied AC /AC
Dimensions:. . . . . . . . . . . 116 × 55 × 125 mm
Weight: . . . . . . . . . . . . . .980 g
Subject to technical modification.
All rights reserved by MONACOR
Co. KG. No part of this instruction manual may be reproduced
in any form or by any means for any commercial use.
adap tor (230 V/ 50 Hz) or four
9 V batteries
INTERNATIONAL GmbH &
®
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