QSC K8.2 User Manual page 9

Cooling
This is a powered loudspeaker containing an internal power amplifier that produces heat. Allow a minimum of 6" (152
mm) clearance at cabinet back for convection cooling. Keep anything that might restrict airflow away from the rear of the
enclosure (i.e draperies, walls, etc.)
CWAONN GE: 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). 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.
AC Mains
Refer to — Figure 10)
Connect the AC power cord to the IEC socket on the back of the amplifier. Make
sure the plug is fully inserted into the IEC socket on the power amplifier module.
NOTE: Make sure that the AC power switch is in the OFF position
EN
before connecting AC power cord to the AC source.
Connect the AC Power cord to the facility's AC outlet.
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.2 Series loudspeaker cord. If the QSC-
supplied cord is lost or damaged, a standard 18-gauge IEC power cord may be
used. However, the latching system works only with a V-LOCK power cord. Available from QSC.
The K.2 Series loudspeakers are equipped with a universal power supply that can use input AC power voltages ranging
from 100 – 240 VAC at 50 – 60 Hz.
WA N NGE: Use only the power cable that is correct for your location.
AC Mains Disconnection
Push in on the bottom of the rocker switch to turn the powered loudspeaker off. Unplug the AC cable from the power
source. To remove the AC mains cord from the amplifier, grasp the IEC connector's plastic body, press the yellow latch
release button and pull.
Power Switch
Push in on the top of the rocker switch to apply AC mains power to the amplifier. When power is applied to the amplifier,
the blue POWER indicator LED illuminates.
Rear LED POWER Indicator
The blue LED POWER indicator on the rear panel will illuminate when the AC Power is applied. The rear LED POWER
indicator will extinguish when the AC Power has been removed, or the amplifier enters standby.
If the rear LED POWER indicator does not illuminate within the first 3 minutes after power is applied, verify the AC mains
line cord is properly attached to the loudspeaker and plugged into the AC outlet. Verify the outlet is functioning properly.
NOTE: If the AC mains cord is usable and the AC mains outlet is operating properly, but the unit fails to
operate, the loudspeaker may require servicing. Contact QSC's Technical Services department.
TD-000523-00-01-C
9 (DRAFT 2017/05/02)
— Figure 10 —