QSC KC12 - AC Mains; AC Mains Disconnection; Power Switch; Cooling

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AC Mains
Connect AC power to the IEC socket on the back of the amplifier by locating the IEC
connector-end of the AC power cord and inserting it fully into the IEC inlet on the power
amplifier module. NOTE: Turn off the AC power switch before connecting AC power.
The V-LOCK power cord has a special latching feature to prevent the power cord from
being unintentionally removed. The IEC plug and socket are both blue in color so the power
cord can be identified as a K Class loudspeaker cord. If the QSC supplied cord becomes
lost or damaged, a standard replacement 18 gauge IEC power cord may be used.
However, the latching system will only function with a V-LOCK power cord available from
QSC, LLC.
The KC12 is fed by a universal power supply. This power supply is capable of operating the
system with input AC power voltages ranging from 100 - 240 VAC at 50 - 60 Hz.
CAUTION!: Use only the power cable that is correct for your location.
AC Mains Disconnection
Turn the AC power switch to the off position. To remove the AC mains cord, grasp the IEC connector’s plastic body, press the yellow
latch release button and pull, removing the connector from the socket.
Power Switch
Push in on the top of the rocker switch to apply AC mains power to the powered loudspeaker. Push in on the bottom of the rocker switch
to turn the powered loudspeaker off.
Cooling
This is a powered loudspeaker containing an internal power amplifier that produces heat. Allow a minimum of 15 cm/6 inches of
clearance at the rear or grille of the KC12S enclosure, and grille of the KC12T topbox enclosure, for convection cooling. Keep anything
that might restrict airflow away from the rear or grille of the enclosures (i.e draperies, walls, etc.)
KC12 Menu
The KC12 loudspeaker provide a multi-function digital display for control and selection of loudspeaker functions including presets,
scenes, cross-over, EQ, delay and frequency contour.
Display Introduction
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2 3 4
—Figure12—
1. Home Screen: Displays input types (MIC, Line, HI-Z, +48V) for channels A and B, and main functionality parameters. Light
background with black text indicates the item is selected.
2. Exit, or go back button: press to return to the previous screen or menu level.
3. Enter button: confirm a selected parameter or open the selected menu item.
4. Selector knob: move to another menu item, or change a selected parameter.