QSC KC12 - Deployment and Coverage; System Power Sequencing

14
Deployment and Coverage
The QSC LEAF™ Waveguide optimized for the KC12 offers 35° of vertical coverage (+7.5° to -27.5°), and 145° of even horizontal
coverage. This means that no matter where you place your KC12 Active Column Loudspeaker System, your audience will benefit from
clean, even coverage throughout the listening area. The KC12 can be deployed:
• At full height on ground-level with both the KC-SP32 and KC12T for full acoustic throw across the head height of a standing audience
• At half-height, with just the KC12T for self-monitoring, lower-SPL applications, or seated audiences
• At half-height, on a stage/riser where space off the riser is at a premium or unavailable, and the loudspeaker resides at the
audience head height
NOTE: Make sure to allow for at least 15 cm/6 inches of airflow at the rear of the KC12 Active Column Loudspeaker
System in order to prevent premature thermal limiting due to airflow restriction.
WARNING!: Do not use the KC-SP32 column pole as a device to lean on or brace yourself with. The connectors may
become damaged, impacting the connectivity of the system
WARNING!: Do not tip or lean the KC12 system once it has been assembled. This motion could damage the couplers or
cause unintended harm to yourself or others nearby if the system were to tip over
WARNING!: Do not install enclosures with their rear panels exposed to direct sunlight. Direct sunlight will heat the
amplifier module and reduce its ability to produce full output. Install sunshades if needed. Maximum ambient temperature
for full performance to specification is 50° C (122° F).
WARNING!: Do not install enclosures where exposed to rain or other water sources. The enclosure is not weatherproof.
Outdoor installations must provide protection from the elements.
35°
35°
35°
14 5°
—Figure7—
System Power Sequencing
Proper power turn on/turn off sequencing can help to prevent unexpected sounds from being produced by the system (pops, clicks,
thumps). Always follow the rule that loudspeakers are “last on, first off”.
Power On Sequence: Bring the output level control of the mixer (or other audio source) feeding your loudspeakers to its minimum
position. Turn on all source devices (CD players, mixers, instruments), then turn on the KC12 Active Column Loudspeaker System. The
level controls on your mixer may now be brought up.
Power Off Sequence: Turn off KC12 Active Column Loudspeaker Systems, then turn off all source devices. Any device being driven from
the output of a KC12 via the THRU or ASSIGN OUTPUT should be turned off before the KC12 feeding it signal is powered off.