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Included in Delivery
1 Power mixer MP184A
1 Mains power cord for non-heating apparatus
2 Retaining rails for 19" rack installation
1 Operating instruction
Features
• 6 mono channels with gold-plated XLR jacks, symmetrical inputs and loop-in possibility
• discrete ultra low noise designed microphone pre-amplifier with 48V phantom powering
• 4 stereo channels with unsymmetrical jack sockets
• 2 additional stereo channels with 60 mm sliding-dolly regulator
• switchable 7-band graphic equalizer
• symmetrical outputs
• 4-band sound control (at stereo channels), 3-band sound control with adjustable centre (at mono chan-
nels)
• peak LEDs and switchable low-pass filter at all mono channels
• overload detector with LED and low-pass filter at all mono channels
• 2 aux send outputs to loop-in effect devices or for monitor path
• master aux send with adjustment possibility of amplifying factor and pre fader listening (PFL)
• high-precision stereo 12 segment LED modulation indicator
• integrated power amplifier
Unwrapping, Setting up
Do not insert the mains plug into the mains socket and do not switch on the device, before connection
works have been completed.
Take out the power mixer with its accessories and its installation parts. They are partly located on the side
in the polystyrene corners of the packaging.
Remove the shaped pieces of the transport packaging from the device. Please retain them for future trans-
ports.
Please check whether the voltage selector has been set to the distribution voltage usual
in your country. See chapter: Terminal Panel on the Back / (16) MAINS Switch and
Change of Fuse.
Only place the device onto an even, stable surface. There needs to be sufficient air circulation for the pow-
er mixer, so that the arising heat can be lead away. Never cover the ventilation slits of the unit. Failure to
observe this note could lead to damages on the unit.
To avoid hum interference in other devices because of the strong magnetic field, please make sure that no
other sensitive electronic devices are placed in the proximity of the location of the power mixer.
Installation of 19" lateral angle
Dismantle the left and/or right side protection and the handle by unscrewing the cross-recessed screws
from these parts with a suitable Philips screwdriver. Loosen the now visible cross-recessed screws on each
side behind the side parts. Place a 19" lateral angle on each side of the unit, so that the narrower side of the
spaces point in the direction of the rubber feet of the unit. Slide the 19" lateral angle with the smaller spaces
underneath the screws and tighten them.
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Troubleshooting
With this unit you have bought a state-of-the-art product which is safe to operate. However, problems or
disturbances can arise.
This why we would like to inform you, how such possible occurrences can be eliminated:
Malfunction:
no function, after the power
switch was switched on
no signal in the headphones
channel supplies no signal
Recorder can only be heard over headphones,
not through the speakers
channel supplies no signal to ALT3-4 bus
no sufficient signal without feedback
no signal on speakers
channel supplies distorted signal
audible humming noise
Technical Specification
Mono input channels
Microphone input:
symmetrical
Frequency response:
10 Hz to 60 KHz ± 3 dB
Distortion factor (THD&N):
0.007% at + 4dBu, 1 KHz frequency range 80 KHz
Gain control range:
+10dB to +60dB
Max. input level:
+12dBu
Line input:
symmetrical
Frequency response:
10 Hz to 60 KHz ± 3 dBv
Distortion factor (THD&N):
0.007% at + 4dBu, 1 Khz frequency range 80 KHz
Fader control range:
+10 dBu to –60 dBu
Max. input level:
+22 dBu
EQ
Low:
80 Hz ± 15dB
Mid:
100 Hz to 8KHz ± 15 dB
High:
12 KHz ± 15 dB
Low-pass filter
3dB at 75 Hz - 18dB/Okt.
Stereo input channels
Line input:
symmetric
Frequency response:
10 Hz to 60 KHz ± 3 dB
Distortion factor THD&N):
(0.007% at + 4dBu, 1 KHz frequency response 80 KHz
Fader control range:
+10 dBu to –60 dBu
Max. input level:
+22 dBu
EQ
Low:
80 Hz ± 15 dB
Low Mid:
500 Hz ± 15 dB
High Mid:
3 KHz ± 15 dB
High:
12 KHz ± 15 dB.15
Please check:
whether the mains plug is correctly inserted into the
cold-device mains socket at the back of the unit
whether the headphone volume adjuster is turned up
whether a unit is connected to the INSERT jack.
If so, is it switched on?
whether 2TK TO MIX switch is pressed
whether ALT3-4 switch is pressed on the channel
microphones and speaker set-up and change it
whether POWER switch on power amplifier is switched
on
whether an external unit is clipped in on the INPUT
jacks of the power amplifier
setting of GAIN adjuster
cable connections
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