Master audio EL Series User Manual page 22

Master Audio
1 - SPEAKON: All models use two Speakon terminals and are duly prepared for
a perfect connection in a parallel system.
WARNING: It is strongly recommended to use a two-conductor high quality
wire, non-shielded and two-coloured. We recommend to use a minimum section
2
of 4mm for each conductor.
Avoid long wire distances as they induce to important power and quality losses.
2.2. Configurations
2.2.1. Full Range Stereo configuration
Connect each output of the amplifier LEFT/RIGHT to each cabinet using two
wires, independently.
Fig.3. Full range stereo configuration
2.2.2. Full Range Parallel configuration
Connect the Speakon input of the first cabinet to the amplifier's output, always
respecting the polarity positive +1, negative -1. Then, make a bridge from the
first cabinet to the second one. This configuration allows us to connect up to
four cabinets to the same amplifier.
Fig.4. Full range parallel configuration
EL Series. Version 1.4 22 Nov 09