QSC KS112 - BETTER: Stacked; Stacked KS118 Configuration; Three-box cardioid systems; Stacked Three-Box Array

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TD-001536-01-B
BETTER: Stacked
Stacking two KS118 subwoofers is similar to the side-by-side arrangement.
Figure 10 is a front view. Place the rear-facing subwoofer on the bottom.
Cardioid > Rear
FRONT VIEW
(as seen from
audience)
Floor
Cardioid > Forward
– Figure 10 –
Toward audience
Cardioid > Rear
Cardioid > Forward
TOP VIEW
– Figure 11 –
Cardioid > Rear
FRONT VIEW
(as seen from
audience)
Floor
Cardioid > Forward
– Figure 12 –
Three-box cardioid systems
A three-box array, with two forward-
facing and one facing to the rear,
gives additional acoustic output
to the front but with slightly less
optimal rear attenuation.
Figure 11 is a top view of a back-to-
back three-box array.
Figure 12 is a front view of a
stacked three-box array. Use the
bottom subwoofer as the rear-
facing one.