5) With the button PFL being unlocked again, the LED
‘PK’ serves as an overload indication for coarsely
checking the level of the channel: If it lights up, the
channel signal is close to overload. The LED should
For a stereo channel, adjust the input amplificat-
ion for the microphone input of the channel with the
control ‘GAIN MIC’ for the line input of the channel,
the input amplification is matched with the selector
switch ‘LINE LEVEL’ : If the input signal is too poor,
press the button to boost the level by 14 dB (Boost-
ing the level via the switch ‘LINE LEVEL’ can also
be used for the microphone input of the channel if
the input signal of the microphone is still too poor
even with the gain control fully advanced.)
4) For a mono channel, adjust the input amplification
to an optimum level with the corresponding control
‘GAIN’ by means of the peak program meter: The
peak program meter should indicate level values in
the range of 0 dB with music peaks. If required, the
control can also be fully turned to the left or right
stop.
3) Press the button PFL of the channel. With the
button pressed, the pre-fader listening feature for
the channel is activated: The red LED ‘PK’ of the
channel lights permanently and the peak program
meter indicates the pre-fader level of the channel.
2) Advance the corresponding channel fader to approx.
0 dB and advance the master faders until the signal
is audible via the PA system connected. (The signal
can also be monitored via headphones - see chapt-
er 6.4)
a) Set the following controls to mid-position:
All gain controls
All equalizer controls
All panorama and balance controls
b) Unlock the buttons ‘line level’ of the stereo
channels and all PFL buttons
c) Set the level controls ‘playback level’ and
‘ AUX IN’ to ‘0’
d) Close all channel faders
1) Feed an audio signal (test signal or music piece)
to the first channel used.
6.1 Basic adjustment of the input channels
Prior to level control of the input channels
Never adjust the audio system or the headphones to a
very high volume. Permanent high volumes may dama-
ge 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.
Caution!
Prior to switching on it is recommended to set the mas-
ter faders ‘MAIN MIX’ and the master controls of the
send ways ‘AUX-SEND’and ‘MON-SEND’ to minimum
to prevent switching noise. Switch on the mixer (switch
POWER). The LED ‘POWER’ lights up. Then switch on
the units connected.
6 Operation
3) If a send way is used as an effect way, the signal
processed by the effect unit can be returned to the
mixer either via an unconnected input channel or via
the jacks ‘AUX-IN’. Mix the signal to the master
signal with the level control of the input used (corres-
ponding channel fader or control ‘AUX-IN’).
2) The master signals of send ways are available at
the outputs ‘AUX SEND’ or ‘MON SEND’ respective-
ly; adjust the output level with the corresponding ma-
ster control of the send way ‘AUX SEND’ or ‘MON
‘
SEND’.
1) Use the controls ‘AUX’ or ‘MON’ to mix the signals
of the input channels to the send way ‘AUX’ or
‘MON’ as desired.
If required, the send way ‘AUX’ can be modified to pre-
fader and the send way ‘MON’ to pre-equalizer or post-
fader. - see chapter 4.2.
a) if a send way is used as an effect way, it should be
designed post-fader (signal is taken after the chann-
el faders). The send way ‘AUX’ is factory-set to post-
fader.
b) If a send way is used as a monitor way, it should be
designed pre-fader (signal is taken ahead of the ch-
annel faders). The send way ‘MON’ is factory-set to
pre-fader.
6.2 Adjustments for the send ways
8) Close the channel fader again to ensure that the
signal of the first channel will not interfere when
adjusting the next channel. Unlock the correspondi-
ng button PLF again. Repeat the adjustments of
level, sound, and panorama or balance for all other
channels.
7) In the mono channel, place the signal on the stereo
base with the control ‘PAN’ or in the stereo channel,
adjust the balance with the control ‘BAL’.
6) Adjust the sound:
For a mono channel with the 3-way equalizer:
Control HI for the high frequencies
(±15dB/12kHz).
Control LO for the bass frequencies
(±15 dB/60Hz).
For the midrange frequencies: Adust the filter frequ-
ency between 250Hz and 6kHz with the upper con-
trol MID and the boosting or attenuation (±15dB)
with the lower control MID.
For a stereo channel with 2-way tone control:
Control HI for the high frequencies
(±15dB/12kHz).
Control LO for the bass frequencies
(±15dB/45Hz).
After that, check the level of the channel and readju-
st it, if required.
not light up at all or light up only shortly. In case the
LED lights permanently, the level of the input signal
must be reduced [by reducing the input amplification
(gain) or the output level of the corresponding signal
source].
6
