SPL MixDream Model 2384 16x2 Analog Summing Mixer - Manual (Page 9)

MixDream 9
The MixDream enclosure is EMC-safe and effectively shielded
against HF interference. Nonetheless, you should carefully consider
where you place the unit to avoid electrical disturbances.
IMPORTANT: Adjust the voltage setting on the rear panel so
that it corresponds to your local power conditions.
The MixDream and all devices to be connected should be turned
off before connections are made. Always turn volume down or
mute your speakers when disconnecting or repatching audio
cables to avoid damage to your speakers and ears.
The following graph shows the correct wiring for connecting
unbalanced signals to the balanced XLR outputs:
Rear Panel/Connections
General Advices
Output
balanced unbalanced
1=GND
2=hot (+)
3=cold (-)
1 2
3
1 2
3