All operating elements and connections de -
scribed can be found on the fold-out page 3.
Contents
1 Operating Elements
and Connections . . . . . . . . . . . . . . . . 10
1.1 Input channels . . . . . . . . . . . . . . . . . . . 10
1.2 Effect channel . . . . . . . . . . . . . . . . . . . . 10
1.3 Output panel . . . . . . . . . . . . . . . . . . . . . 11
1.4 Rear panel . . . . . . . . . . . . . . . . . . . . . . 11
2 Safety Notes . . . . . . . . . . . . . . . . . . . . 11
3 Applications . . . . . . . . . . . . . . . . . . . . 11
4 Connecting the Units . . . . . . . . . . . . . 11
4.1 Audio sources . . . . . . . . . . . . . . . . . . . . 11
4.1.1 Microphones . . . . . . . . . . . . . . . . . . . 11
4.1.2 Line audio sources . . . . . . . . . . . . . . 11
4.2 Effect unit . . . . . . . . . . . . . . . . . . . . . . . 12
4.3 Recorder . . . . . . . . . . . . . . . . . . . . . . . . 12
4.4 Headphones . . . . . . . . . . . . . . . . . . . . . 12
4.5 Monitor system for the musicians . . . . . 12
4.6 Additional amplifier . . . . . . . . . . . . . . . . 12
4.7 Speaker systems . . . . . . . . . . . . . . . . . 12
4.8 Console light . . . . . . . . . . . . . . . . . . . . . 12
4.9 Foot pedal for the effect processor . . . . 12
4.10 Power supply . . . . . . . . . . . . . . . . . . . . 12
5 Operation . . . . . . . . . . . . . . . . . . . . . . . 12
5.1 Switching on and off . . . . . . . . . . . . . . . 12
5.2 Mixing input signals . . . . . . . . . . . . . . . 12
5.3 Using the signal compressor . . . . . . . . 13
5.4 Adjusting the monitor send way . . . . . . 13
5.5 Adding effects . . . . . . . . . . . . . . . . . . . . 14
5.5.1 Using the internal effect processor . . 14
5.5.2 External effect unit . . . . . . . . . . . . . . . 14
5.6 Monitoring via headphones . . . . . . . . . 14
6 Specifications . . . . . . . . . . . . . . . . . . . 15
6.1 Plug configuration . . . . . . . . . . . . . . . . . 15
Block diagram . . . . . . . . . . . . . . . . . . . . 49
1 Operating Elements
and Connections
1.1 Input channels
Fig. 1 Mono input channel CH 2
All mono input channels (CH1…CH6)
are identical.
Fig. 2 Stereo input channel CH 9-10
All stereo input channels (CH 7-8,
CH 9-10, CH 11-12 are identical.
Fig. 3 Channel CH 13-14 for a recorder, head-
phones and the power amplifier
1 Channel fader to adjust the volume of the
channel and to fade in / fade out the channel
signal
2 LED PEAK lights up shortly when the maxi-
mum undistorted signal level has been
reached. If it lights up for a longer period of
time, the channel is overloaded. Then press
the button PAD (10) or reduce the input level.
3 Button PFL (with LED indicator) for pre-fader
listening to the selected channel via the
headphones connected to the jack PHONES
(19) and for indicating the channel signal by
means of the level indicators (43). For this,
the button (42) beneath the indicators must
be pressed.
4 Button MUTE (with LED indicator) to mute
the channel
5 Panorama control PAN to place the mono
signal in the stereo sound
6 Balance control BAL for the stereo channels
7 Control AUX 2 FX to add the channel signal to
the send way AUX 2 (post-fader)
This send way is used as the effect way for the
internal effect processor and for an external
effect unit.
8 Control AUX 1 MON to add the channel signal
to the send way AUX 1 (pre-fader)
This send way is used as the monitor way for
on-stage monitoring by the musicians.
9 Equalizer control
LOW for the bass frequencies:
±15 dB at 80 Hz
MID for the mid-frequencies:
±12 dB at 2.5 kHz
HIGH for the high frequencies:
±15 dB at 12 kHz
10 Button PAD to reduce the input level by 20 dB
11 Stereo input LINE IN (6.3 mm jacks, bal.) to
connect a signal source with line output level
(e. g. musical instrument, CD/ MP3 player)
Note: When connecting a mono unit, only use the
jack L (MONO). The signal will then be internally
sent to the right and left channels.
12 Mono input LINE IN (6.3 mm jack, bal.) to
connect a signal source with line output level
13 Input MIC to connect a microphone (XLR
jack, bal.)
The phantom power supply can be switched
on for the microphone inputs,
item 14.
14 Switch PHANTOM (with LED indicator) to
switch on / off the 48 V phantom power supply
for three microphone inputs
Please observe the warning notes with
regard to the phantom power supply in chap-
ter 4.1.1.
15 Volume control PHONES for headphones
connected to the jack PHONES (19)
16 Switch POWER AMP to switch on / off the
power amplifier
17 Switch AMPLIFIER ASSIGN to assign the
operation mode to the power amplifier
upper position = The power amplifier oper-
ates in stereo mode and amplifies the left
and the right sum signals.
mid position = The power amplifier operates
in 2-channel mode: In the channel A, it
amplifies the mono sum signal; in the
channel B, it amplifies the signal of the
send way AUX 1 for on-stage monitoring
by the musicians.
lower position = The power amplifier oper-
ates in bridged mode (double output power
at an 8 Ω speaker) and amplifies the mono
sum signal.
18 Input and output jacks (RCA) for a recorder;
a 3.5 mm jack is also provided as an input
The sum signal after the fader MAIN MIX (36)
is available at the jacks TAPE OUT.
To add the signal of the jacks TAPE IN to the
sum signal, use the fader CH 13-14 (1).
19 Output PHONES (6.3 mm jack) to connect
stereo headphones (minimum impedance:
8Ω)
1.2 Effect channel
20 Fader FX TO MAIN to add the internal effect
signal to the sum signal
21 Button MUTE to mute the internal effect
processor
When the effect processor is muted, the LED
next to the button will light permanently.
When the effect processor is switched on, the
LED will indicate any overload of the proces-
sor that might occur.
22 Control FX TO MON to add the internal effect
signal to the signal of the send way AUX 1 for
on-stage monitoring by the musicians
23 Knob PROGRAM to select the effect: Turn
the knob until the effect number starts flash-
ing on the display (24); then briefly press the
knob to confirm.
24 Display to indicate the effect number selected
25 Input AUX RET (6.3 mm jacks, bal.), can be
used as an input for an effect unit or for an
additional line audio source
To add the input signal to the sum signal, use
the fader AUX RET (28).
Note: When connecting a mono unit, only use the
jack L (MONO). The signal will then be internally
sent to the right and left channels.
26 Output FX SEND (6.3 mm jack, unbal.) for the
effect send way AUX 2
27 Connection FOOT SWITCH (6.3 mm jack,
2 poles) for a foot pedal to switch on / off the
internal effect processor
10
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