Contents
4 For the mono channels:
For the stereo channels:
7 Level controls (faders) for the mono channels.
9 2-way tone controls for the stereo channels
“HI” for the high frequencies (±15dB/12kHz)
“LO” for the bass frequencies (±15dB/45Hz)
10
Peak program meter
11
Power LED
12
Phantom power LED:
1 Operating Elements and Connections
upper control: for adjusting the filter frequency
(250-6000Hz)
lower control: for boosting or attenuating
(±15dB) the midrange frequencies
“LO” for the bass frequencies (±15dB/60Hz)
2 3-way equalizers for the mono channels :
“HI” for the high frequencies (±15dB/12kHz)
“MID” for the midrange frequencies:
1.1 Front panel
1 Operating Elements and Connections ............ 1
2 Safety Notes ................................................... 3
3 Applications .................................................... 3
4 Modification of the Input Channels ................. 3
4.1 Switching off the phantom power
for individual channels(mono channels) or
switching it on (stereo channels) .................... 4
4.2 Modifying the signal take-off points
for the send ways ‘AUX’ and ‘MON’ ................ 4
4.3 Modifying the signal take-off points
for the direct outputs ....................................... 4
5 Connection of units ......................................... 4
5.1 Audio sources ................................................. 4
5.1.1 Microphones ................................................... 4
5.1.2 Units with line output level .............................. 5
5.2 Inserting units for sound processing ............... 5
5.3 Effect units ...................................................... 5
5.4 Headphones ................................................... 5
5.5 Recorders ....................................................... 5
5.6 Amplifier .......................................................... 5
6 Operation ........................................................ 6
6.1 Basic adjustment of the input channels .......... 6
6.2 Adjustments for the send ways ....................... 6
6.3 Mixing the audio sources ................................ 7
6.4 Monitoring via headphones ............................. 7
7 Specifications .................................................. 7
8 Glossary .......................................................... 8
1
1 Gain controls for adjusting the input amplification for
the channels (for the stereo channels, the control is
effective for the micro phone inputs only)
3 Controls for mixing the signals of the channels 1-16
respectively to the “AUX” send way (post-fader) and
the “MON” send way (pre-fader)
Note:
For both send ways, the signal take-off points
can be internally modified separately for each
individual channel (to be performed by skilled
personnel only). See chapter 4.2.
Panorama controls “PAN” for placing the mono
signal on the stereo base.
Balance controls “BAL” for adjusting the level
ratio of the right and left channels.
5 Indication LEDs “PK” serve either as overload
indications or as PFL indications.
6
PFL buttons for the channels:
For pre-fader listening (PFL) to the respective
channel via headphones connected to the jack; with
the button pressed, the led “PK” of the channel will
light permanently and the peak program meter will
show the pre-fader level of the channel.
8 Selector switches for adjusting the input amplification
for line sources connected to the stereo channels.
Button not pressed:
Low amplification for professional units with an output
level of +4dBu
Button pressed:
Higher amplification for semi-professional units with
an output level of -10dBu
Lights up if the 48V phantom power for the
microphone inputs of the mono channels has been
switched on with the switch “PHANTOM POWER
+48V”
a) If none of the PFL buttons has been pressed, the
level of the master signal at the jacks “ MAIN MIX
OUTPUT” will be indicated.
b) If one or more PFL buttons have been pressed,
the level of the selected input channels is
indicated pre-fader.
a) If the PFL function has not been activated for the
channel (button PFL not pressed), the LED will
light up shortly to indicate that the channel signal
has reached its maximum level at which it is close
to overload; the LED will permanently show red
to indicate overload of the channel.
b) With the PFL function activated for the channel
(button PFL pressed), the LED will light
permanently.
