IMG STAGELINE MPA-102 Mode D'emploi page 7

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 XLR 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 XLR output (12).
For unbalanced connection, the contacts 1
(ground) and 3 of the XLR inline jack should be
bridged. The servo-balanced circuit will automati-
cally 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 RCA 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 RCA output (10).
5) For power supply via the AC / DC 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): Press down the
button PHANTOM (3).
ATTENTION! Do not connect any unbalanced
microphone to the microphone input (13) when
the phantom power has been activated; the
microphone may be damaged.
2) Switch on the unit with the on / off switch POWER
(8). The LED above the selector switch GAIN (1) is
green to indicate operation.
3) Via the selector switch GAIN (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 is red.
4) For phase reversal of the microphone signal by
180°, press down the button PHASE (4).
5) The mixing control LEVEL (2) is used to add the
micro phone signal to the stereo line channel. Turn
up the control according to the de sired signal level.
The output signal of the stereo line channel is avail-
able at the RCA jacks LINE OUTPUT (10).
6) The PAN pot (7) is used to distribute the mono
microphone 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, press down the button LP 12 kHz (5).
8) To suppress low interference frequencies with the
high-pass filter, press down the button HP 100 Hz
(6).
6 Specifications
Frequency range:. . . . . . 20 – 20 000 Hz
Gain
MIC INPUT : . . . . . . . 20 – 70 dB, switchable
LINE INPUT : . . . . . . . 0 dB
Input sensitivity
for 1 V at the output:. . . 0.3 – 150 mV, switchable
Input impedance
MIC INPUT : . . . . . . . 2.2 kΩ
LINE INPUT : . . . . . . . 10 kΩ
Phantom power: . . . . . . +24 V
Outputs
PREAMP OUTPUT : . . 1 V/ 12 V max., 100 Ω; XLR
LINE OUTPUT : . . . . . 1 V/ 6 V max., 100 Ω; RCA
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: . . . . . . . . via provided AC / DC adap tor
Dimensions (W × H × D): 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.
connected to 230 V / 50 Hz or
via three 9 V batteries
INTERNATIONAL GmbH &
®
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