Please unfold page 3. Then you can always
see the operating elements and con nections
de scribed.
1 Operating Elements
and Connections
1
Selector switch for adjusting the gain
(20 – 70 dB)
2
Control for mixing the microphone signal to
the stereo line channel
3
Toggle switch for the phantom power supply
(+24 V)
4
Toggle switch for reversing the phase of the
microphone signal
5
Toggle switch for the low-pass filter
6
Toggle switch for the high-pass filter
7
Panpot for distributing the mono micro-
phone signal to the stereo line channel
8
On/off switch
9
Connection jack for the provided AC/AC
adaptor
10
Phono output jacks of the stereo line channel
11
Phono input jacks of the stereo line channel
12
Line output (XLR, servobalanced)
13
Microphone input (XLR, balanced)
2 Safety Notes
The unit and the AC /AC adaptor correspond to
all relevant directives of the EU and are there-
fore marked with
.
It is necessary to observe in any case the fol-
lowing items:
G
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).
G
Even if the unit is switched off, the AC/AC
adaptor connected to the mains has a low
power consumption.
G
Do not take the unit into operation or immedi-
ately take the AC/AC adaptor out of the
mains socket if:
1. damage at the unit or AC/AC adaptor can
be seen,
2. a defect might have occurred after a drop
or similar accident,
3. there are malfunctions.
The unit resp. the AC/AC adaptor must in any
case be repaired by authorized skilled per-
sonnel.
G
No guarantee claims for the unit or the AC/AC
adaptor and no lia bility for any resulting per-
sonal damage or material damage will be ac-
cepted if they are used for other purposes
than originally in tended, if they are not cor-
rect ly connected, operated, or not re paired in
an expert way.
G
For cleaning only use a dry, soft cloth. Do not
use any chemicals or water.
3 Applications
The MPA-102 is a microphone preamplifier in
low noise semiconductor technique to be used
on the stage and in the sound record ing studio
as well as for home recording and multimedia
applica tions.
The unit has a balanced XLR microphone
input and a servobalanced XLR line output. The
amplified microphone signal can additionally be
taken off at a stereo line output or may be
added to a fed-through stereo line signal.
4 Connecting the Unit
The microphone preamplifier should be
switched off if connections to other units are
going to be made resp. changed.
1) The power supply of the microphone pream-
plifier is either via the provided AC/AC adap-
tor (15 V~) or – for the mobile use of the unit
– via four 9 V transistor batteries. The in-
serted batteries are disconnected during
power supply via the AC/AC adaptor.
- For supplying the unit via the AC/AC adap-
tor, connect the adaptor to the jack (9).
- For battery operation remove the four
screws at the bottom housing of the unit.
Connect the battery poles to the “I”-shaped
battery snaps of the unit. Insert the batter-
ies into the battery fixture. Mount the bot-
tom housing and fasten it. If the unit will not
be operated via the batteries for a long er
period of time, the batteries should be
If the unit and the AC/AC adaptor are to
be put out of operation definitively, they
must be disposed of in a local recycling
plant.
Never throw exhausted batteries or defective recharge-
able batteries into the household rubbish: Always take
them to a spe cial waste disposal (e. g. collecting con -
tain er at your retailer).
WARNING
The AC /AC adaptor uses danger -
ous mains voltage (230 V~). To
prevent a shock haz
ard do not
open the cabinet. Leave servic ing
to authorized skilled personnel
only.
7
GB
