QSC KLA181 1000-Watt 18-inch Active Line Array Subwoofer – Black


Out of stock



The KLA Series brings the power and sophistication of a line-array system into an easy-to-use product. With its simple Lift, Click and Play approach, KLA deploys in a fraction of the time required by comparable line-array products. This fixed arcuate, active line-array system is ideal for a wide range of portable and permanently installed applications ranging from live entertainment to houses of worship or other venues where a line-array system is desired.

The KLA Series is comprised of two models: the KLA12 12-inch, 2-way loudspeaker and the KLA181 18-inch subwoofer. The KLA12 features a highly efficient 500 W x 500 W power-amp module in a rugged, lightweight ABS enclosure that can be used in multiple configurations using QSC’s unique SOLO™ (Single-Operator Logistics) Rigging System and/or Tilt-Direct™ 35 mm pole socket. The KLA181 offers the same highly efficient power-amp module in a 1,000 W configuration in a birch plywood enclosure.

• 1,000 watt power module
• 18-inch ported subwoofer
• High acoustic output (135 dB SPL peak)
• Frequency range down to 33 Hz (-10 dB)
• Extensive DSP further enhances and protects performance
• powerCON® Input and Thru connections
• Threaded pole receptacle for free-standing applications (black models only)
• Suspension made possible via M10 fittings or KLA12AF Array Frame
• Integrated threaded pole mount supports up to two KLA12 enclosures (black models only)

In the Box
– KLA181 Subwoofer Assembly
– AC powerCON® Power Cord (CEE 7/7), 3.6 Meter
– AC powerCON® Power Cord (NEMA 5-15 – USA style), 12 Foot
– XLR Audio Loop-thru Cable, 3 Foot
– powerCON® Loop-thru Power Cord, 3 Foot
– Hex Key, 6 mm
– Euro-style Connector Plug, 3-pin

Configuration: 18-inch subwoofer
Transducers: 18-inch cone transducer
Frequency Response (-6 dB): 38 Hz
Frequency Range (-10 dB): 33 Hz
Nominal Coverage: –
Maximum SPL (1 meter): 135 dB peak

Power Output: 1000 W Class D continuous
Input Impedance: XLR: 40 kΩ balanced / 20 kΩ unbalanced
Controls: Power, Attenuation, LF Mode (Normal/DEEP™), Polarity (Normal/Reverse), Front LED (Pwr/Limit/Off)
Indicators: Power, Signal, Standby, Limit
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 to 60 Hz
AC Power Consumption (1/8 Power):
– 100 VAC, 2.3 A
– 120 VAC, 2.01 A
– 230 VAC, 1.13 A

Material: Painted birch plywood
Finish: Black or white textured paint
Grille: Black or white powder coated 16 gauge steel
Dimensions (HWD): 21.6 x 23.1 x 25.7 inches (547 x 586 x 633 mm)
Net Weight: 100 lb / 45.3 kg



QSC is an American manufacturer of audio products including power amplifiers, loudspeakers, digital mixers and digital signal processors including the Q-Sys networked audio, video and control platform. QSC products are used by professional installed, portable, production, corporate and cinema customers worldwide.


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.