Outputs Of The Subgroups; Foot Pedal For The Effect Processor; Power Supply; Operation - IMG STAGELINE MMX-82UFX Bedienungsanleitung

the mixer or audio recording from the mixer
☞
( manual of the program) . The mixer can
then be operated as described in chapter 5 .
If no audio recording or audio production is pos-
sible, check the system settings of the computer
to find out if the USB interface has been selected
for audio input or audio output .
Hint: If the mixer is connected to both a computer
and to units earthed via their mains cable (e . g . am-
plifiers), hum interference may occur due to ground
loops . To eliminate this interference, use a ground
isolator (e . g . FGA-102 or FGA-202) to connect the
mixer to the corresponding unit .

4.8 Outputs of the subgroups

The subgroup signals can be added to the signal
sum via the buttons SUB ASSIGN TO MASTER
(26), but they are also available at the outputs
SUB OUT (54) . The subgroup signals may be
forwarded from these outputs to another mixer
or to a separate effect unit, for example .
4.9 Foot pedal for the
effect processor
To activate and deactivate the internal ef-
fect processor, a foot pedal, e . g . FS-60 from
MONACOR, may be connected to the 2-pole
6 .3 mm jack FOOT SWITCH (51) .

4.10 Power supply

Use the mains cable supplied to connect the
mains jack (46) to a socket (230 V/ 50 Hz) .

5 Operation

CAUTION Never adjust the audio system
or the headphones to a very
high volume . Permanent high
volumes may damage your
hearing! Your ear will get accustomed to high
volumes which do not seem to be that high
any more after some time . Therefore, do not
further increase a high volume after getting
used to it .

5.1 Switching on and off

1) To prevent switching noise and an excessive
volume, set the following output controls to
minimum prior to switching on the mixer:
− MASTER (34)
− BOOTH / PHONES (33)
− AUX SEND MASTER / MON (30) if send
way 1 is used as a monitor way .
2) Depending on the microphone type con-
nected, use the switch PHANTOM (49) to
activate or deactivate the 48 V phantom
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power ( chapter 4 .1 .1) .
3) Use the POWER switch (48) to switch the
mixer on and off . When the mixer is switched
on, the LED indicator POWER ON (36) will
light up .
5.2 Level control of the
input channels
The following steps merely serve as an aid; other
procedures are possible .
1) First, make the following basic adjustments:
a) In all mono input channels (fig . 1), set the
controls GAIN (20), the equalizer controls
HIGH (17), MID (13), LOW (12) and the
control PAN (7) to mid-position . Disen-
gage the buttons (18) .
b) In all stereo input channels (fig . 2), set the
equalizer controls HIGH (17), MID 3 kHz
(16), MID 500 Hz (14), LOW (12) and the
control BAL (8) to mid-position . Disen-
gage the button +4 /−10 (19) in chan-
nel CH 9 / 10, and disengage the button
LINE / OPT (19) in channel CH 11 / 12 .
c) In all input channels, turn back the con-
trols AUX SEND 1 / MON (11) and AUX
SEND 2 / FX (9) for the send ways to min-
imum .
d) In all input channels, disengage the but-
tons MUTE (6), 1-2 (4), L-R (3) and SOLO
(2) and set the channel faders (1) to min-
imum .
e) On the output panel (fig . 3), disengage
all buttons SOLO (29) and the button
TAPE / USB TO MIX (41) and turn back
the controls AUX SEND MASTER (28, 30)
and the controls RETURN (27, 31, 37) to
minimum .
2) Feed an audio signal to the first channel used
(e . g . sing into a microphone, play a musical
instrument) .
3) If the signal is to be made audible via the
connected amplifier for PA applications in
halls, advance the fader (1) of the channel
to the position "0", press the button L-R (3)
and then advance the faders MASTER (34)
until the signal can be heard well . However,
it is also possible to monitor the signal via
headphones or a control monitor system
when the faders are closed,
4) Press the button SOLO (2) of the channel
to switch on the monitor function for the
channel; the LED PEAK (5) will light up .
5) If necessary, disengage the button PFL /AFL
(40) to select the monitor mode "PFL": the
LED beneath the button will light up in green
and the left row of LEDs of the level indi-
cators (38) will indicate the channel signal
ahead of the fader and the control PAN (7)
or BAL (8) .
6) Use the level indicators for an optimum
adjustment of the input amplification:
For a mono channel, adjust the control
GAIN (20) so that a level of approximately
0 dB is indicated .
If the stereo channel CH 9 /10 is over-
loaded even though the button +4 /−10 (19)
is disengaged, attenuate the level of the sig-
nal source . If the level is too low, press the
button +4 /−10 to boost the level (12 dB) .
The input amplification for the stereo
channel CH 11 / 12 is predefined and cannot
be changed . If the level is not ideal, change
the output level of the signal source con-
nected .
7) Adjust the sound, using the controls HIGH
(17) for the high frequencies and LOW (12)
for the low frequencies (±15 dB) .
For a mono channel, use the control
MID FREQ (15) to adjust the mid-frequency
(100 – 8000 Hz), and use the control MID (13)
to boost or attenuate (15 dB) it . If required,
press the button (18) to suppress low-fre-
quency interference (e . g . impact noise, hum) .
For a stereo channel, use the controls
MID 500 Hz (14) and MID 3 kHz (16) to adjust
the mid-frequencies (±15 dB) .
Then check the level of the channel and,
if necessary, correct the input amplification .
8) Disengage the button SOLO to switch off
the monitor function for the channel . When
the monitor function is switched off, the LED
PEAK is used as an overload indicator with
which the level of the channel can be roughly
checked . If it lights permanently, attenuate
the input amplification (control GAIN) or the
input signal .
9) To make sure that only the channel being
adjusted is audible while the signal is being
reproduced via the amplifier for PA applica-
tions in halls: After controlling the level of a
channel, set its fader (1) to minimum or press
MUTE (6) to mute the channel .
10) Repeat steps 2) to 9) for all the other input
channels .

5.3 Mixing input signals

1) Define for each input channel if the channel
signals are to be added to the sum channels
or / and to the subgroup channels:
− To add the signals to the sum channels
MASTER, press the button L-R (3) .
− To add the signals to the channels SUB 1
and 2, press the button 1-2 (4) . Use the
faders SUB 1 and 2 (24) to fade in and
fade out these signals or to change their
volume . If required, use the jacks SUB
OUT (53) to send these signals to a sep-
arate effect unit .
2) Advance the faders MASTER (34) until it is
possible to adjust the mixing ratio of the
audio sources in an optimum way .
3) Use the faders (1) to mix the signals of the
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chapter 5 .6 .
input channels in the volume ratio desired .
Always close the faders of unused channels .
4) For the mono channels, use the panorama
controls PAN (7) to place the mono signals
in the stereo sound . For the stereo channels,
use the controls BAL (8) to adjust the balance
of the stereo signals .
5) If signals are sent to the subgroups, press
the corresponding buttons SUB ASSIGN TO
MASTER (26) to add the subgroups to the left
and right sum channels . (Usually, engage the
button L in channel SUB 1 and the button
R in channel SUB 2) . Use the faders SUB 1
and SUB 2 (24) to adjust the volume of the
subgroup signals .
6) Please refer to chapter 5 .5 for information
on adding effects .
7) To add the input signal of the jacks TAPE IN
(23) and of the USB port (45) to the signal
sum, press the button TAPE / USB TO MIX (41) .
Note: If, during recording via the jacks TAPE OUT
or the USB port, the recording signal is fed as
an input signal to the jacks TAPE IN or to the
USB port, make sure that the button TAPE / USB
TO MIX is not engaged; otherwise, there will be
feedback .
8) Use the faders MASTER to adjust the definite
volume of the sum signal; check the level
indicators (38) while adjusting the volume .
To make sure that the level indicators indicate
the level of the sum signal, engage the but-
ton MASTER MIX (32) . Also make sure that
all the buttons SOLO (2, 29) for the monitor
function are disengaged . [If one of the but-
tons SOLO is engaged, the LED beneath the
button PFL /AFL (40) will light up .] The red
LEDs CLIP of the level indicator will light up
in case of overload; close the faders MASTER
accordingly .
9) To mute a channel, e . g . during an interval,
press the button MUTE (6, 25) . The LED be-
neath the button will light up .
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