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Daisy-Chaining Procedure
1. Insert the locking POWER-OUT connector of the jumper cable (not supplied) fully into the OUTLET connector on the loudspeaker’s
rear panel. Twist clockwise until it locks in place.
2. Insert the locking POWER-IN connector into the INLET connector on the rear panel of the next loudspeaker in the chain. Twist
clockwise until it locks in place.
3. Repeat until all loudspeakers in the array (up to six (6), using five (5) loop-thru jumper cables) are properly connected.
Please follow the table below to safely power a specific loudspeaker array.
NOTE:
The QSC LS118 is a single 18-inch, active subwoofer, part of the L Class family of products, designed to
complement LA108/LA112 loudspeakers.
Model
Input Current (Normal Use)
100V (15A Circuit)
120V (15A Circuit)
220~240V (10A Circuit)
LA108
100V = 0.8A
120V = 0.8A
220~240V = 0.5A
Up to 6x loudspeakers
Total 4.8A
Up to 6x loudspeakers
Total 4.8A
Up to 6x loudspeakers
Total 3A
LA112
100V = 1.8A
120V = 1.5A
220~240V = 1.0A
Up to 6x loudspeakers
Total 10.8A
Up to 6x loudspeakers
Total 9A
Up to 6x loudspeakers
Total 6A
LS118
100V = 3A
120V = 3A
220~240V = 1.5A
Up to 4x subwoofers
Total 12A
Up to 4x subwoofers
Total 12A
Up to 4x subwoofers
Total 6A
It is also possible to mix and match subwoofers with arrayed loudspeakers when pole-mounting or ground-stacking them close
together. However, the QSC LA-KIT (both J and J-/NA versions) will need to be extended with a second jumper cable or compatible
Powercon TRUE1 cable to connect the uppermost subwoofer to the lowermost arrayed box.
NOTE:
PowerCON TRUE1 cables have a plug-end and a socket-end that can be daisy chained together to create
longer power connections.
Recommended Configurations
LA108 Loudspeaker
• 1x LS118 subwoofer with 3x LA108 loudspeakers pole mounted above (total 5.4A/100~120V or 3A/220~240V)
• 2x LS118 subwoofers with 4x LA108 loudspeakers in a ground-stack (total 9.2A/100~120V or 5A/220~240V)
LA112 Loudspeaker
• 2x LS118 subwoofers with 2x LA112 loudspeakers pole mounted above (total 9.6A/100, 9A/120V or 5A/220~240V)
• 2x LS118 subwoofers with 3x LA112 loudspeakers in a ground-stack (total 11.4A/100V, 10.5A/120V or 6A/220~240V)
WARNING!:
Always ensure the circuit is loaded no higher than 80% of the circuit rating when daisy-chaining AC power
to multiple boxes. For example, never load more than 12 Amps on a 120 V/15 A circuit, or 8 Amps on a 230 V/10 A
circuit.