Item #1421048 Model #KS112

QSC KS112 12" Compact Powered Subwoofer Standard


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Ultra-compact design with Class-D amplification.

Striking the perfect balance of powerful low-end extension and portability, the KS112 sports a Class-D amplifier with an impressive 2,000W peak/1,000W continuous output, all in a lightweight, ultra-compact package. With a single 12" driver housed in a 6th order bandpass birch enclosure, the KS112 portable subwoofer delivers the deep, rich bass audiences crave. It also features the uncompromising build quality and reliability you've come to expect from QSC. The KS112 may have a small footprint, but this rugged little subwoofer is designed to withstand demanding professional use and take the stage, night after night.

For DJs and live performers on the go, portability is a top priority. Whether you're trying to stuff all your gear into a small passenger vehicle, or just trying to save wear and tear on your back, every ounce counts, and every inch counts. Subwoofers have a reputation for being heavy and cumbersome, especially for one person. Weighing just over 62 lb., the KS112 is remarkably lightweight, and is especially ergonomic. Thanks to the comfortable grab handles built into its sides, and the built-in, smooth-rolling casters, you'll be shocked at how easy this little powerhouse is to maneuver and load by yourself.

The proof is, of course, in the pudding, and the KS112 powered subwoofer delivers a healthy serving of tight, accurate bass. Onboard DSP provides variable crossover and savable/recallable scenes for commonly-used applications. Meanwhile, Intrinsic Correction tuning and loudspeaker management maximizes performance and protects the subwoofer’s components. With 2,000 watts of peak Class-D amplification on tap, the KS112 has more than enough power to keep up with the K.2 Series loudspeakers and round out your sound system with proper low-end reinforcement.

Two M20 threaded pole receptacles provide a positive, wobble-free connection to a threaded speaker pole in either vertical or horizontal deployment. An optional KS-LOC security cover prevents unauthorized tampering of controls. Rugged, low-noise casters are included. Musicians, bands, mobile DJs, system integrators and AV rental/production professionals alike will appreciate the performance of the KS112 in a wide variety of applications – particularly when paired with TouchMix Series mixers, further optimizing KS Series performance, or as a complement to K.2 Series loudspeakers.

Speaker Configuration
  • Active/passive: Active
  • Type: Subwoofer
  • LF driver: 12"
  • MF driver: Not applicable
  • HF driver: Not applicable
  • Amplifier class: D
  • Wattage: 2,000W peak/1,000W continuous
  • Mixer/preamp: Not applicable
  • Frequency response: 41Hz–108Hz
  • Coverage pattern: Omnidirectional
  • Max SPL: 128 dB
  • XLR: 2 combo
  • TRS: Not applicable
  • TS: Not applicable
  • RCA: Not applicable
  • SPEAKON: Not applicable
  • XLR: 2
  • TRS: Not applicable
  • TS: Not applicable
  • RCA: Not applicable
  • SPEAKON: Not applicable
  • Cabinet material: 15 mm birch
  • Width: 15.5"
  • Height: 24.5"
  • Depth: 24.5"
  • Weight: 62.6 lb.


  • Ultra-compact, lightweight design
  • Efficient Class-D amplifier with 2,000W peak/1,000W continuous output
  • M20 threaded sockets on two sides for horizontal and vertical deployment
  • Rugged construction with birch cabinet
  • Single 12" driver in 6th order bandpass design