4-Channel Microphone Mixer
Please read these operating instructions carefully prior to
operating the unit and keep them for later reference.
1 Applications
The MMX-4 is a miniature mixer for four mono microphones
whose signals are mixed and amplified to line level.
2 Important Notes
The unit corresponds to all relevant directives of the EU and
is therefore marked with .
G
The unit is suitable for indoor use only. Protect it against
dripping water and splash water, high air humidity and
heat (admissible ambient temperature range 0 – 40 °C).
G
For cleaning only use a dry, soft cloth, never use chemi-
cals or water.
G
No guarantee claims for the unit and no liability for any
resulting personal damage or material damage will be
accepted if the unit is used for other purposes than origi-
nally intended, if it is not correctly operated or not
repaired in an expert way.
3 Power Supply
The power supply can be made with a 9 V battery or a 9 V
power supply unit (e. g. PSS-906DC from MONACOR).
1) For battery operation, unscrew the battery compartment
at the lower side of the unit and insert a battery (not sup-
plied).
2) For operation with a power supply unit connect the power
supply unit to the jack 9 V (3). If a battery has been
inserted, it is switched off. A low voltage plug 5.5 / 2.1 mm
(outside / inside diameter) is required. Always observe
the correct polarity: The positive pole must be at the cen-
tre contact!
If the unit is to be put out of operation definitively,
take it to a local recycling plant for a disposal which
is not harmful to the environment.
MMX-4
Attention! Remove the battery if the unit is not in use for a
longer time or if it is only operated with a power supply unit.
Thus, the unit will not be damaged in case the battery
should leak.
4 Operation
1) Connect the microphones to the jacks INPUT 1 to 4 (1).
2) Connect the jack OUTPUT (2) to a line input of the fol-
lowing unit (amplifier, mixer, recorder).
3) Set the controls MIC 1 – 4 (4) of the channels to which no
unit has been connected to “0”. Set the other controls to
mid-position first.
4) To switch on the unit, turn the control MASTER (5) clock-
wise. The LED ON PK (6) shortly lights up at maximum
brightness first and then keeps lighting at lower bright-
ness.
5) Adjust the output level with the control MASTER so that
the following unit is adjusted to an optimum level.
6) Mix the microphone signals with the controls MIC 1 – 4 or
fade them in and out. The LED ON PK serves as a level
indicator.
5 Specifications
Frequency range: . . . . . . 20 – 20 000 Hz
Input sensitivity: . . . . . . . 5 mV
Input impedance: . . . . . . 1 kΩ
Output voltage: . . . . . . . . 100 mV
Output impedance: . . . . . 2 kΩ
S /N ratio: . . . . . . . . . . . . 55 dB
THD: . . . . . . . . . . . . . . . . < 0.5 %
Power supply: . . . . . . . . . 9 V (battery or PSU)
Dimensions, weight: . . . . 148 × 85 × 55 mm, 500 g
Subject to technical modifications.
Do not put exhausted batteries into the household
rubbish but take them to a special waste disposal
(e. g. collective container at your retailer).
Order No. 24.1070
MONACOR INTERNATIONAL GmbH & Co. KG • Zum Falsch 36 • 28307 Bremen • Germany
Copyright
©
by MONACOR INTERNATIONAL. All rights reserved. A-0994.99.03.07.2012
®
GB
®
456
123
Connections and Operating Elements
1 Microphone inputs
2 Line level output
3 Connection for power supply
4 Channel signal controls
5 On / off switch and output level control
6 Power LED and level indicator
