All operating elements and connections de -
scribed can be found on the fold-out page 3.
1 Operating Elements
and Connections
1.1 Front panel
In figure
, a mono channel and a stereo chan-
nel are shown by way of example; the other input
channels are identical.
1 Input MIC to connect a microphone (XLR
jack, bal.)
Note: A phantom power can be activated for all
microphone inputs
item 15.
2 Input LINE to connect a unit with line signal
level (e. g. musical instrument)
Mono channel:
1 × 6.3 mm jack, bal.
Stereo channel:
1 × 6.3 mm jack, Left L, bal.
1 × 6.3 mm jack, Right R, bal.
To connect a mono unit, only use the jack L.
3 Control GAIN for input amplification
4 Button
for the low cut filter (high pass fil-
ter); when the button is pressed, unwanted
signal parts below 75 Hz (e. g. impact noise)
will be suppressed
5 4/-10 for matching the level of units
with low line output level; when the button is
pressed, the input level will be boosted
6 Equalizer for HIGH, MID and LOW
7 Control AUX SEND to add the channel signal
to the effect send way [the signal will be
picked up after the control LEVEL (10)]; the
send way is also used as an effect way for the
internal effect processor
8 Overload LED PEAK; if its lights perma-
nently, turn back the GAIN control (3) and / or
the equalizer controls (6) accordingly (mono
channel) or release the 4/-10 (5)
(stereo channel)
9 Mono channel:
Panorama control PAN to place the mono
signal in the stereo sound
Stereo channel:
Balance control BAL for the stereo signal
10 Control LEVEL to add the channel signal to
the signal sum
11 Output MASTER OUT for the sum signal
(6.3 mm jacks Left L/ Right R, unbal.), e. g. to
connect the amplifier for PA applications or a
second mixer
12 Output BOOTH OUT (6.3 mm jacks Left L /
Right R, unbal.) to connect the amplifier of a
monitor system in a separate control room
13 Output AUX SEND (6.3 mm jack, unbal.) of
the effect send way, to connect the input of an
effect unit
14 Output PHONES (6.3 mm jack) to connect
stereo headphones (minimum impedance
8 Ω)
15 Button PHANTOM 48V; press the button to
apply a 48 V phantom power to all inputs
MIC (1)
Please observe the warning notes with regard
to the phantom power in chapter 4.1.1.
16 LED PWR ON
17 LED for the phantom power activated with the
button PHANTOM 48V (15)
18 Input TAPE IN (RCA jacks Left L / Right R) to
connect the output of a recorder or another
reproduction unit, e. g. CD player
19 Output TAPE OUT (RCA jacks Left L / Right R)
to connect the input of a recorder
20 LED level indicators, to indicate
– the sum signal adjusted with the control
MASTER (25) when none of the buttons
(22, 23) for the monitor function is pressed
or
– the monitor signal selected with the corre-
sponding button (
item 22 or 23)
21 Button TAPE / USB TO MIX; with the button
pressed, the input signal of the jacks TAPE
IN (18) and of the USB port (33) is added to
the sum signal
22 Button TAPE TO BOOTH / PHONES; with the
button pressed, the input signal of the jacks
TAPE IN (18) and of the USB port (33) is sent
to the monitoring outputs BOOTH OUT (12)
and PHONES (14) and indicated by means of
the LED level indicators (20)
Note: When the button AUX SEND TO BOOTH (23)
is pressed in addition, it will take priority, i. e. the
effect way will be monitored and indicated.
23 Button AUX SEND TO BOOTH; with the but-
ton pressed, the signal of the effect way is
sent to the monitoring outputs BOOTH OUT
(12) and PHONES (14) and indicated by
means of the LED level indicators (20)
24 Volume control BOOTH
/
PHONES for the
monitoring outputs BOOTH OUT (12) and
PHONES (14)
25 Total level control MASTER for the audio mix
(sum of all signals);
the sum signal is sent via the jacks MASTER
OUT (11), TAPE OUT (19) and the USB port
(33) and can be monitored via the outputs
BOOTH OUT (12) and PHONES (14)
Operating Elements for the effect processor
26 Effect selector knob FX SELECT:
Turn the knob until the effect number starts
flashing on the display (27), and then press
the knob briefly to confirm.
27 Display EFFECT; to indicate the number of
the effect selected
28 Button MUTE; to mute [LED PEAK
/
MUTE
(29) will light up] and unmute the effect
processor
29 LED PEAK / MUTE; lights up to indicate an
overload at the input of the effect processor
or to indicate muting of the effect processor
with the button MUTE (28)
30 Level control FX TO MASTER to add the
effect signal to the sum signal
1.2 Rear panel
31 Power supply jack to connect the power sup-
ply unit provided
32 On / off switch of the mixer
33 USB port (type B) to connect a computer; can
be used as an output (for digital output of the
sum signal) and as an input (to feed in audio
data)
2 Safety Notes
The units (mixer and power supply unit) corre-
spond to all relevant directives of the EU and are
therefore marked with
.
Please observe the following items in any case:
G
The units are suitable for indoor use only. Pro-
tect them against dripping water and splash
water, high air humidity and heat (admissible
ambient temperature range: 0 – 40 °C).
G
Do not place any vessel filled with liquid on the
units, e. g. a drinking glass.
G
The heat generated inside the mixer must be
dissipated by air circulation; never cover the
air vents of the housing.
G
Do not operate the mixer and immediately dis-
connect the power supply unit from the socket
1. if the mixer or the power supply unit is visi-
bly damaged,
2. if a defect might have occurred after a unit
was dropped or suffered a similar accident,
3. if malfunctions occur.
In any case the units must be repaired by
skilled personnel.
G
For cleaning only use a dry, soft cloth; never
use water or chemicals.
G
No guarantee claims for the units and no lia-
bility for any resulting personal damage or
material damage will be accepted if the units
are used for other purposes than originally
intended, if they are not correctly connected or
operated, or if they are not repaired in an
expert way.
3 Applications
This audio mixer is designed for universal PA
and recording applications. It features 4 mono
input channels and 4 stereo input channels to
connect microphones (also phantom-powered)
and audio sources with line output level (e. g.
musical instruments, players). A send way allows
for the use of an effect unit. However, effects can
also be added via the integrated multi-effect
processor (100 preset effects). Audio mixing can
be monitored by means of headphones and / or a
monitor system in a separate control room.
In addition to connections for an analog
recorder, the mixer features a USB audio inter-
face to connect a computer. This interface can
be used both as an output for digital recording of
the audio mix and as an input to feed in audio
files.
If the units are to be put out of operation
definitively, take them to a local recy-
cling plant for a disposal which is not
harmful to the environment.
WARNING The power supply unit uses dan-
gerous mains voltage. Leave ser -
vicing to skilled personnel. Inex-
pert handling or modification may
result in electric shock.
7
GB