Specifications

37
KLA12’s Ar-Q™ (Arcuate Equalization)
processing enables users to quickly tune the array,
making appropriate frequency compensation
adjustments based on the number of boxes.
With the click of a dial, the user can select
the total number of boxes deployed in the
array resulting in an evenly balanced and
accurate tonal curve. QSC’s proprietary Intrinsic
Correction™, first introduced with the WideLine™
Series, actively adjusts time, frequency and
amplitude response to achieve a maximally flat
bandpass target.
KLA181
In addition a to DEEP™ DSP algorithm,
GuardRail™, Auto Standby, balanced line-
level XLR input with an XLR "Thru" connector,
Attenuation Control and LED indicators, the
KLA181 subwoofer also includes a polarity
switch for low frequency directivity control.
Rigging & Deployment
For maximum deployment flexibility, KLA
loudspeakers can be either ground deployed
or flown. As a ground stack, up to two KLA12
enclosures can be mounted over the KLA181
or the KW181 subwoofer via a threaded pole
socket, or without a sub using an appropriately
rated loudspeaker stand. KLA12 enclosures
also feature the Tilt-Direct™ 35mm pole
socket allowing the loudspeaker to be aimed
downward 9° for the best audience coverage.
Up to five KLA enclosures (any combination
of KLA12 and KLA181) can be flown via
M10 fittings on the top of each enclosure. An
optional KLA AF12 array frame is also available.
LOUDSPEAKERS
KLA12 KLA181
Configuration Multipurpose 2-way 18" Subwoofer
Transducers
Low-frequency
High-frequency
12" cone transducer
1.75" diaphragm compression driver
18" cone transducer
–
Frequency Response (-6 dB) 49 Hz – 18 kHz 38 Hz
Frequency Range (-10 dB) 44 Hz – 20 kHz 33 Hz
Nominal Coverage (-6 dB) 90 x 18 degree –
Output
1
(Peak SPL @ 1 meter) 128 dB 135 dB
Amplifiers
Power Output 500 W x 500 W power module 1,000 W power module
Input Impedance (Ω) XLR: 40k balanced / 20k unbalanced XLR: 40k balanced / 20k unbalanced
Controls
Power • Attenuation • LF Setting (External Sub/
Normal/DEEP™)• Array Size (1–5) • Front LED
(Pwr/Limit/Off)
Power • Attenuation • LF Mode (Normal/DEEP™) •
Polarity (Normal/Reverse) • Front LED (Pwr/Limit/Off)
Indicators Limit • Standby • Power • Signal
Connectors
Balanced female XLR line level input • Balanced male XLR full range line level out • Remote attenuation
control • Locking PowerCON power connector AC In • Locking PowerCON power connector AC Out
Cooling On demand, 50 mm variable speed fan
Amplifier Protection Thermal limiting • Output overcurrent • Overtemperature muting • GuardRail™
Transducer Protection Thermal limiting • Excursion limiting
AC Power Input Universal power supply 100 - 240 VAC, 50 - 60 Hz
AC Power Consumption 1/8 Power
2
100 VAC, 2.3 A • 120 VAC, 2.01 A • 230 VAC, 1.13 A
Enclosure Impact resistant ABS Painted birch plywood
Finish Black or White Paint Black or White textured paint
Grille Black or White powder coated 18 gauge steel
Dimensions (HWD) 15.0" x 23.4" x 16.6" (382mm x 594mm x 422mm)
21.6" x 23." x 25.7" (547mm x 586mm x 653mm)
Weight (Net) 54 lbs / 25 kg
100 lbs / 45.3 kg
Available Accessories
KLA12 TOTE • K Series M10 KIT •
KLA AF12 Array Frame
KW181 Pole
1 Calculated for 1 m, based on sensitivity (full-space for full range systems and half-space for LF-only and
subwoofer systems) and peak power capability of amplifier.
2 1/8 power is representative of current draw with typical music program material with occasional clipping.
RoHS
Preliminary Specifications
Available KLA Series Accessories
• KLA12 TOTE
• KLA Series M10 KIT
• KLA AF12 Array Frame