Output Channels - IMG STAGELINE MPX-44/SW Manual De Instrucciones

4 Connection
Switch off the mixer prior to connecting any
units or to changing any existing connections .
1) Connect the stereo audio sources to the
corresponding RCA input jacks of the chan-
nels 1 to 4 (white jack LEFT; red jack RIGHT):
– units with line level output (e . g . MP3 /
CD player, cassette recorder) to the jacks
LINE or CD (34);
– turntables with magnetic system to the
jacks PHONO (27) . The clamping screw
GND (28) can be used as a common
ground: Connect the ground con nection
of the turntables to the clamping screw .
2) Connection of two microphones is possi-
ble: Connect a DJ microphone to the DJ
microphone channel DJ MIC and another
microphone to the second microphone
channel MIC 1 . Either con nect the corre-
sponding microphone via an XLR plug or
a 6 .3 mm plug to the microphone input (1)
on the front panel or via a 6 .3 mm plug to
the corresponding microphone input (35)
on the rear panel .
3) For connecting amplifiers, several stereo
outputs with individual level controls are
available:
– outputs MASTER (30): it is recommended
to connect the main amplifier for PA ap-
plication in halls to these outputs, option-
ally to the bal anced XLR output or to the
phono output
– output BOOTH (31): it is possible to con-
nect e . g . the amplifier for a monitoring
system to this output
– output ZONE (32): it is possible to connect
e . g . an additional amplifier for PA appli-
cation in adjoining rooms to this output
4) For audio recordings, connect the recorder
to the stereo output REC (33) . The recording
level is in dependent of the position of the
three output controls ZONE, BOOTH, and
MASTER (16, 17, 18) .
5) For prefader listening to the input channels
or for monitoring the current music pro-
gramme ahead of the three output controls
ZONE, BOOTH, and MASTER (16, 17, 18),
it is possible to connect stereo headphones
(minimum impedance 8 Ω) to the 6 .3 mm
jack (26) .
6) For illuminating the console, it is possible
to con nect a gooseneck light (12 V/ 5 W
max .) to the BNC jack LAMP (19), e . g . the
light GNL-205 from the IMG STAGELINE
range . The light is switched on or off with
the mixer .
7) Finally connect the plug of the mains cable
(29) to a mains socket (230 V/ 50 Hz) .
8
5 Operation
Prior to switching on, set the output controls
ZONE, BOOTH, and MASTER (16, 17, 18) to
minimum to prevent switching noise . Switch
on the mixer with the switch POWER (20) . The
power LED above the switch lights up .
CAUTION Never adjust the audio system
or the headphones to a very
high volume . Permanent high
volumes may dam age your
hearing! The human ear will get accustomed
to high volumes which do not seem to be
that high after some time . Therefore, do not
further increase a high volume after getting
used to it .
After operation, switch off the mixer with the
switch POWER .
5.1 Basic adjustments
5.1.1 Stereo input channels 1 to 4
First set all gain controls (9), equalizer controls
(12), and the balance control (15) to mid-posi-
tion . Then set the two switches for crossfading
C .F . ASSIGN A and B (21, 23) to "0" .
Level control of a channel:
1) Use the input selector switch (8) of the
channel to select the jacks of the desired
signal source .
2) Feed an audio signal (e . g . music piece) to
the input .
3) Advance the fader (11) of the channel to
approx . ⅔ of its maximum .
4) To monitor the signal via the speakers of
a PA system connected, advance the cor-
responding output control – ZONE (16),
BOOTH (17), or MASTER (18) . (The signal
can also be monitored via headphones – see
chapter 5 .4 .)
5) The level indication (10) of the channel dis-
plays the signal level ahead of the channel
fader (prefader level) . Via the level indica-
tion, control the level of the input with the
gain control (9) of the channel: In case of
optimum level control, values in the 0 dB
range are displayed at average vol ume . If
the red +9 dB LED lights up, there is an over-
load of the channel . If required, turn the
gain control fully to MIN or MAX .
6) Adjust the desired sound with the three
equalizer controls (12) of the channel . By
adjusting the controls, the high frequen-
cies (HIGH), midrange frequencies (MID),
and low frequencies (LOW) can be boosted
(up to 15 dB max .) or substan tially attenu-
ated (up to 30 dB max .) . With the controls
in mid-position, the frequency response is
not affected .
After the sound adjustment, readjust
the channel level once again with the gain
control, if requir ed .
5.1.2 Microphone channels
For level control of a microphone channel, first
set the gain control (3) and the tone controls
(4) of the channel to mid-position and set the
switch PAD (2) of the channel to the upper
position .
1) To switch on the microphone, press the but-
ton MIC ON (6) of the channel (the button
lights up) .
2) Advance the control LEVEL (5) of the chan-
nel and the master control (18) to approx .
⅔ of its maximum .
3) Speak into the microphone . Adjust the gain
control (3) of the channel in such a way that
the stereo level indication (14) displays val-
ues in the 0 dB range (if required, the control
can be fully opened or closed) .
In case of howlback (loud whistling) or
if the input level is too high even with the
gain control closed, set the PAD switch (2) of
the channel to the lower position: The input
level will be attenuated by 15 dB .
4) Adjust the sound with the 3-way tone con-
trol (4) of the channel: the high frequencies
(HIGH) mid range frequencies (MID) and low
frequencies (LOW) can be attenuated or
boost ed up to 12 dB max . Readjust the
channel level with the gain control after-
wards, if required .
5) To improve the audibility of an announce-
ment during the current music programme,
the talkover function can be switched on for
the DJ microphone with the button AUTO
TALK (7): With the button pressed, the levels
of the stereo channels 1 to 4 are automati-
cally attenu ated by 16 dB when announce-
ments are made via the DJ microphone . To
switch off the function, unlock the button .

5.1.3 Output channels

The output signal is fed to the adjustable out-
puts MASTER (30), BOOTH (31), ZONE (32)
and to the recording output REC (33) without
individual level control .
1) The stereo level indication (14) displays the
level of the signal at the outputs MASTER .
Via the level indication, adjust an optimum
level with the control MASTER (18) . Usually,
an optimum level has been obtained when
the level indication displays values in the
0 dB range . However, if the output level is
too high or too low for the following unit,
the signal must be controlled to a corre-
spondingly lower or higher level .
2) With the control BOOTH (17), adjust the
desired signal level for the output BOOTH .
3) With the control ZONE (16), adjust the de-
sired signal level for the output ZONE .
4) With the balance control BAL (15), ad-
just the balance for the outputs MASTER,
BOOTH, and ZONE .
5) The recording signal at the output REC can
be monitored via headphones – see chap-
ter 5 .4 . It is not affected by the controls
MASTER, BOOTH, and ZONE (the signal is
taken off ahead of the output controls) .