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TD-001536-01-B
KS212C Applications and Installation
WARNING: The KS212C subwoofer is not suitable for flying or suspension.
Before placing, installing, or mounting a subwoofer check all hardware, cabinets, transducers, brackets, and associated
equipment for damage. Missing, corroded, deformed, or non-load-rated components could significantly weaken the
installation or placement and severely reduce the safety of the installation if left uncorrected. Use only hardware that is
rated for the loading conditions of the installation as well as any possible short-term overloading.
Never exceed the load rating of the hardware or equipment.
Consult a licensed professional engineer regarding physical equipment installation. Understand and follow all local, state,
and national regulations regarding the safety and operation of loudspeakers and related equipment.
IMPORTANT: To maintain the acoustic properties of the
KS212C subwoofer do not place the unit closer than 50mm (20
in) from a wall or other object that would reflect sound waves.
Placement of the KS212C
Make sure that the KS212C sub is placed no closer than
20inches (50cm) to the back wall of the stage.
Side-by-side KS212C subs should be at least 20inches (50 cm)
away from each other.
Stacking the KS212C
KS212C subwoofers can stack in a horizontal orientation. The four
rubber feet on the top subwoofer fit perfectly into the four cups on
the bottom one (Figure 5). Do not stack more than two KS212C
subwoofers because it will reduce rear attenuation.
• One subwoofer: 15 dB front-to-rear attenuation at 70 Hz
• Two subwoofers stacked: 12.5 dB front-to-rear attenuation at 70 Hz
• Three subwoofers stacked: 10 dB front-to-rear attenuation at 70 Hz
A stack of two subwoofers can support a loudspeaker, including a pole-mounted one.
WARNING: Do not stack the KS212C units in a vertical orientation.
Minimum 20 in / 50 cm
Front of Stage
– Figure 4 –
– Figure 5 –
Back Wall of Stage
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