Applications - IMG STAGELINE MPA-102 Mode D'emploi

GREEN: ON RED: PEAK
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1
Microphone Preamplifier
These operating instructions are intended for users with
basic knowledge in audio technology. Please read the
instructions carefully prior to operating the unit and
keep them for later reference.
1 Operating Elements and Connections
1 Selector switch GAIN for adjusting the gain
(20 – 70 dB)
2 Control LEVEL for mixing the microphone signal to
the stereo line channel
3 Button PHANTOM for the phantom power supply
(+24 V)
4 Button PHASE for reversing the phase of the micro-
phone signal by 180°
5 Button LP 12 kHz for the low-pass filter
6 Button HP 100 Hz for the high-pass filter
7 PAN pot for distributing the mono microphone sig-
nal to the stereo line channel
8 On / off switch POWER
9 Connection jack 15 V~ for the AC /AC adaptor pro-
vided
10 RCA output jacks of the stereo line channel
11 RCA input jacks of the stereo line channel
12 Line output (XLR, servo-balanced)
13 Microphone input (XLR, balanced)
2 Safety Notes
The unit and the AC /AC adaptor correspond to all rel-
evant directives of the EU and are therefore marked
with .
WARNING The AC /AC adaptor uses danger ous
mains voltage. Inexpert handling or
modification may result in electric
shock. Leave servic ing to authorized
skilled personnel only.
The AC /AC adaptor is suitable for indoor use only.
•
Protect the unit and the AC /AC adaptor against
•
dripping water and splash water, high air humidity
and heat (admiss ible ambient temperature range
0 – 40 °C).
Even if the unit is switched off, the AC /AC adaptor
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6
5 C
2
0 10 L R
LEVEL PAN
3 4 5 6
8
ON
OFF
7
9
connected to the mains has a low power consump-
tion.
Do not operate the unit and immediately disconnect
•
the AC /AC adaptor from the socket:
1. if the unit or the AC /AC adaptor is visibly damaged,
2. if a defect might have occurred after the unit or
the AC /AC adaptor was dropped or suffered a
similar accident,
3. if malfunctions occur.
In any case, the unit or the AC/AC adaptor must be
repaired by skilled personnel.
For cleaning only use a dry, soft cloth. Do not use any
•
chemicals or water.
No guarantee claims for the unit or the AC /AC adap-
•
tor 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.
If the unit and the AC /AC adaptor 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.
Never put discharged batteries / defective recharge-
able batteries in the household waste; always take
them to a special waste disposal, e. g. collection con-
tainer at your retailer.

3 Applications

The MPA-102 is a microphone preamplifier in low-noise
semiconductor technology. It is designed for use on
stage, in recording studios and for home recording and
multimedia applications. The microphone preamplifier
has a balanced XLR microphone input and a servo-
balanced XLR line output. In addition, the amplified
microphone signal can be picked off at a stereo line
output or added to a fed-through stereo line signal.
4 Connecting the Unit
Switch off the microphone preamplifier before making
or changing any connections to other units.
1) The microphone preamplifier is supplied with power
either via the AC/AC adaptor provided or, for mobile
use of the unit, via four 9 V batteries. When it is sup-
LINE LINE PREAMP OUTPUT
OUTPUT INPUT
BAL./UNB. 200Ω
3
2 1
CONNECTOR WIRING
BAL.: 1 2+ 3-
10 11
UNBAL.: 1 2+ 3
MIC INPUT
BAL. 2kΩ
3
1 2
12 13
PHANTOM +24V