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6.2 Inputs
Each of the mono channels 1-4 is provided both with an XLR microphone input and a 6.3 mm jack for signals
with line level which can be used as an alternative to the microphone input. Both jacks are designed for
balanced signals. However, it is also possible to connect sources with unbalanced signals.
1
Connect microphones to the XLR jacks MIC 1-4.
2
Connect units with line mono output to the 6.3 mm jacks LINE 1-4.
3
Connect units with line stereo output to the RCA jacks or alternatively to the 6.3 mm stereo jacks of the
stereo channels 5/6 and 7/8.
6.3 Effect Ways
The jacks REV/AUX SEND and STEREO AUX RETURN allow connection of an additional effect unit with
line level. The effect unit is operated in parallel to the internal effect, i. e. the effect part for each channel is
adjusted with the corresponding control AUX for both effects together.
1
Connect the input of the effect unit to the 6.3 mm jack REV/AUX SEND (mono, unbalanced).
2
Connect the output of the effect unit to the 6.3 mm jack STEREO AUX RETURN. If the effect unit has
separate output jacks for the left channel and the right channel, use a suitable adapter. If the unit only
has a mono output, it may be connected via an adapter with the contacts of tip and ring connected (in
case of connection via a 6.3 mm mono plug, the effect would only arrive at the left channel of the
master signal).
To modify the sound of the master signal, an additional effect unit can be inserted via the jacks MAIN
RETURN. An effect fed in via the jack STEREO AUX RETURN will be added to the original signal, whereas,
when using the MAIN RETURN jacks, the entire signal will be fed through the effect unit connected.
3
Connect the SEND jacks to the inputs of the effect unit. In the MAIN STEREO mode, these jacks will
supply a stereo signal; in the MAIN MONITOR mode, the mono master signal is available at the SEND
LEFT jack, the AUX SEND signal at the SEND RIGHT jack.
The signals are dependent on the adjustment of the master volume, but independent of the master
equalizer.
4
Connect the outputs of the effect unit to the RETURN jacks (unbalanced). As soon as the jacks are
connected, the internal signal way from the mixer to the power amplifier is interrupted and, instead of
the master signal, the signal fed in here is fed to power amplifier via the master equalizer.
6.4 Outputs
1
Connect one left output SPEAKER OUTPUT LEFT and one right output SPEAKER OUTPUT RIGHT to
the speaker systems with the speaker cables supplied.
In case of parallel connection of several speakers, the minimum impendance at each speaker output of
the amplifier must not fall below 4 . See the following example for the calculation number of
speakers/impedance.
Number of speakers
Impedance
1 speaker at 8
8
2 speakers at 8 each 4 (parallel)
2 speakers at 8 each 16 (in line)
3 speakers at 8 each 2.66 (parallel)
3 speakers at 8 each 24 (in line)
4 speakers at 8 each 2 (parallel)
2
At the RECORD OUTPUT jacks, a master signal is available which is independent of the master
equalizer and of the master volume. This output allows connection of a recording unit.
3
If the MAIN SEND jacks are not used for inserting an effect, the master signal of the PA system can
also be picked up here, e. g. to feed it to an additional amplifier.
