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Audio Mixer
These operating instructions are intended for
users with basic knowledge in audio technology .
Please read the instructions carefully prior to
operation and keep them for later reference .
All operating elements and connections
described can be found on the fold-out page 3 .
Contents
1
Overview . . . . . . . . . . . . . . . . 10
1 .1 Input channels . . . . . . . . . . . . 10
1 .2 Output panel . . . . . . . . . . . . 10
1 .3 Rear panel . . . . . . . . . . . . . . 11
2
Safety Notes . . . . . . . . . . . . . . 11
3
Applications. . . . . . . . . . . . . . . 11
4
Connecting Units . . . . . . . . . . . 12
4 .1 Audio sources . . . . . . . . . . . . 12
4 .1 .1 Microphones . . . . . . . . . . . . 12
4 .1 .2 Line audio sources . . . . . . . . . 12
4 .2 Effect units . . . . . . . . . . . . . 12
4 .2 .1 Inserting effect units . . . . . . . . 12
4 .2 .2 Using send ways . . . . . . . . . . 12
4 .3 Recorder . . . . . . . . . . . . . . . 12
system and headphones . . . . . . . 12
4 .7 Operation with a computer . . . . . 12
4 .8 Outputs of the subgroups . . . . . . 13
4 .10 Power supply . . . . . . . . . . . . 13
5
Operation . . . . . . . . . . . . . . . . 13
5 .1 Switching on and off . . . . . . . . 13
5 .3 Mixing input signals . . . . . . . . . 13
5 .4 Adjusting the monitor send way . . . 14
5 .5 Adding effects . . . . . . . . . . . . 14
5 .5 .2 External effect unit . . . . . . . . . 14
for the subgroups . . . . . . . . . . 15
and a control monitor system . . . . 15
6
Specifications . . . . . . . . . . . . . . 15
6 .3 mm plugs . . . . . . . . . . . . 15
10
1 Overview
1.1 Input channels
Fig. 1 Mono input channel CH 1; the other
mono input channels are identical .
Fig. 2 Stereo input channel CH 9 /10; with the
exception of the button of item 19, the second
stereo input channel is identical .
1 Channel fader to adjust the volume of the
channel and to fade in / fade out the channel
signal
2 Button SOLO to monitor the selected chan-
nel via the headphones connected to the
jack PHONES (52) and via a monitor system
connected to the jacks BOOTH OUT (53):
either for pre-fader listening when the but-
ton PFL /AFL (40) is disengaged
or for checking the overall channel adjust-
ment after the channel fader when the but-
ton PFL /AFL is engaged
When the button SOLO is engaged, the
corresponding LED PEAK (5) will light per-
manently and the level indicators (38) will
indicate the corresponding channel signal .
3 Button L-R: When the button is engaged,
the channel signal will be added to the
sum channels MASTER . With the control
PAN (7) or BAL (8), the signal can be added
to the right or left channel only or to both
channels .
4 Button 1-2: When the button is engaged,
the channel signal will be added to the sub-
groups SUB 1 and SUB 2 . With the control
PAN (7) or BAL (8), the signal can be added to
group SUB 1 or SUB 2 only or to both groups .
5 LED PEAK: When the button SOLO (2) is
engaged, the LED PEAK will light perma-
nently . When the button SOLO disengaged,
the LED PEAK will light up briefly to indicate
that the maximum undistorted signal level
has been reached . If it lights up longer, the
channel is overloaded . In this case, turn back
the control GAIN (20) accordingly .
6 Button MUTE (with LED indicator) to mute
the channel
7 Panorama control PAN to place the mono
signal in the stereo sound
When the button 1-2 (4) is engaged, the
control PAN can be used to assign the chan-
nel signal to the subgroups .
8 Balance control
When the button 1-2 (4) is engaged, the
balance control can be used to assign the
channel signal to the subgroups .
9 Control AUX SEND 2 / FX to add the channel
signal to send way 2 (post-fader); this send
way is also used as an effect way for the
internal effect processor
10 Selector button PRE for send way 1
disengaged: signal picked-up post-fader
The channel signal is fed to the send way
after the fader (1) .
engaged: signal picked up pre-fader
The channel signal is fed to the send way
ahead of the fader .
11 Control AUX SEND 1 / MON to add the chan-
nel signal to send way 1
12 Equalizer control LOW 80 Hz for the bass
frequencies:±15 dB at 80 Hz
13 Equalizer control MID for the mid-frequen-
cies: ±15 dB at 100 Hz - 8 kHz
14 Equalizer control MID 500 Hz for the mid-fre-
quencies at 500 Hz: ±15 dB
15 Control MID FREQ to adjust the filter fre-
quency (100 Hz - 8 kHz) for equalizer control
in the midrange
16 Equalizer control MID 3 kHz for the mid-fre-
quencies at 3 kHz: ±15 dB
17 Equalizer control HIGH 12 kHz for the high
frequencies: ±15 dB at 12 kHz
18 Button
for the low cut filter (high pass filter):
When the button is engaged, unwanted
signal parts below 75 Hz (e . g . impact noise)
will be suppressed .
19 Channel CH 9 /10:
Button +4 /−10 for matching the level of
units with low output level; when the button
is engaged, the input level will be boosted
Channel CH 11/12:
Button LINE / OPT to switch the channel input
disengaged: input = jacks LINE (21)
engaged: input = signal of an additional
module (e . g . MP3 player) which is in-
stalled in the upper right section instead
of the cover panel
20 Control GAIN to adjust the input amplifi-
cation
21 Input LINE (6 .3 mm jack, bal .) to connect
a signal source with line output level (e . g .
musical instrument, CD / MP3 player)
Note with regard to the stereo channels:
When connecting a mono unit, only use the
jack L . The signal will then be internally sent to
the right and left channels .
22 Input MIC to connect a microphone
(XLR jack, bal .)
A phantom power can be activated for all
☞
microphone inputs,
item 49 .
23 Input and output jacks (RCA) TAPE for a
recorder
The sum signal is available at the jacks OUT
[after the faders MASTER (34)] .
When the button TAPE / USB TO MIX (41)
is engaged, the signal of the jacks IN will
be added to the sum signal ahead of the
faders MASTER .
1.2 Output panel
24 Faders for the subgroups 1 and 2
25 Buttons MUTE (with LED indicator) to mute
the subgroups
26 Assign buttons SUB ASSIGN TO MASTER to
route the subgroup signals to the left or / and
right sum channel
27 Level control FX RETURN for the effect signal
of the internal effect processor or for the
signal at the input FX RETURN (57)
Use the level control to add the signal to the
sum channels MASTER .
28 Level control AUX SEND MASTER 2 / FX for
the total signal of send way 2 that is sent
to the internal effect processor and to the
output AUX SEND 2 (55)
29 Button SOLO - one for send way 1 and one
for send way 2 - to monitor the send way via
headphones connected to the jack PHONES
(52) and via a monitor system connected to
the jacks BOOTH OUT (53)
30 Level control AUX SEND MASTER 1 / MON
for the total signal of send way 1 that is
available at the output AUX SEND 1 (55)
31 Level control AUX RTN to add the signals at
the input AUX RTN (56) to the sum chan-
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