QSC KLA181 18" Powered Subwoofer Kit with Cover & Rig Hardware

QSC KLA181 18" Powered Subwoofer Kit with Cover & Rig Hardware


QSC KLA181 18" Powered Subwoofer Kit with Cover & Rig Hardware.

The KLA Series brings the power and sophistication of a line array system into an easy-to-use product significantly redefining the line array product category. With its simple Lift, Click and Play approach, KLA can be deployed in a fraction of the time required by comparable line array products.

The 1000W amplifier powers the 18" woofer, which reproduces frequencies down to 33 Hz with a maximum SPL of 135 dB. The KLA181 has an integrated threaded pole-cup receptacle that allows you to pole-mount up to two KLA12 speakers on top of it for array setup. Its M10 fittings allow it to alternatively be suspension mounted.

Additional features include a "DEEP" DSP algorithm for power bass, Guardrail protection to prevent clipping, a balanced XLR line input, an XLR thru, a polarity switch, an attenuation control, and LED indicators. The KLA181 includes a 3.6' and 12' powerCON power cords as well as an 3' XLR audio loop-thru cable, a 3' powerCON loop-thru cable, a Hex key, and a 3-pin Euroblock connector.

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.

In addition 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.


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.

Arrays of up to 480 lbs (218 kg) (with a maximum five KLA12 and two KLA181 enclosures) can be flown via the included M10 fittings or the optional KLA AF12 array frame.


  • 1,000 watt power module
  • 18" vented 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-cup receptacle for free-standing applications
  • Suspension made possible via M10 fittings or KLA12AF Array Frame
  • Integrated threaded pole mount supports up to two KLA12 enclosures