QSC KS118 3600W 18 inch Powered Subwoofer

SKU: 1595
QSC KS118 3600W 18 inch Powered Subwoofer
QSC KS118 3600W 18 inch Powered Subwoofer
QSC KS118 3600W 18 inch Powered Subwoofer
QSC KS118 3600W 18 inch Powered Subwoofer
QSC KS118 3600W 18 inch Powered Subwoofer
QSC KS118 3600W 18 inch Powered Subwoofer

QSC KS118 3600W 18 inch Powered Subwoofer

SKU: 1595
Regular price $1,999.99
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The QSC KS118 Will Beef Up Your PA with 3,600 Watts of Bass

Does your PA system need a bass infusion? Get the QSC KS118 — it delivers the goods. This 3,600-watt active subwoofer yields extreme output with impressive low-frequency performance. Its 18" long-excursion, direct-radiating driver facilitates exceptional punch while maintaining ample low-end extension.

Need more bass for electronic, dance, or club music? No problem. Activate the QSC KS118’s DEEP mode, and you’ll be shaking the rafters. Setup is a breeze, thanks to an adjustable crossover with savable/recallable scenes for common applications. Too much bass onstage? Just add a second KS118, place it in cardioid mode, and you’ll keep bass in its place. The QSC KS118 also includes an M20-threaded pole socket, swivel casters, and a rugged painted wood enclosure.
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The KS Series packs massive power into a lightweight subwoofer

QSC's lightweight yet powerful KS Series sets a new standard for powered subwoofers. Their innovative Class D power modules are the epitome of efficient. Enjoy sonic clarity, robust output, and powerful digital signal processing. Premium-grade materials and advanced construction processes ensure reliability and durability. And deployment options allow for a range of live and installed applications.

QSC products deliver power, reliability, and portability

QSC KS118's PA loudspeakers, power amplifiers, and digital mixers bring live sound into the modern age. For over 40 years, QSC has been producing leading-edge sound products that meet even the most demanding standards. We are proud to offer a full lineup of QSC's active PA speakers, passive PA speakers, ultra-efficient power amps, and advanced TouchMix mixers. Built to satisfy any live sound setup, QSC products deliver the perfect combination of power, reliability, and lightweight, compact portability.

QSC KS118 Powered Subwoofer Features:

  • 3,600-watt 18" powered subwoofer
  • 2 XLR/TRS combo inputs accommodate a variety of sources
  • Selectable DEEP mode for extra low-frequency extension
  • Omnidirectional and cardioid radiation modes (cardioid setup requires 2 units)
  • Adjustable crossover and savable/recallable scenes for common applications
  • Built-in limiter safeguards against excessive levels
  • M20-threaded sockets allow deployment in either vertical or horizontal positions
  • Locking IEC power connector prevents unexpected disconnections
  • Low-noise, heavy-duty casters enable easy rolling
  • Rugged painted wood enclosure

In the Box

QSC KS118 18" 3600W Active Subwoofer

Limited 3-Year Manufacturer Warranty
Registration Extension: 3-Year (US Only)


Powered/Unpowered Powered
LF Driver Size 18"
Total Power 3600W Class D
Inputs 2 x XLR-1/4" combo
Outputs 2 x XLR
Frequency Range 35Hz-111hz (-10 dB)
Frequency Response 41Hz-98Hz (-6 dB)
Maximum Peak SPL 136 dB SPL @ 1m
Mounting Options Floor, Pole
Power Source Standard IEC AC cable
Enclosure Material Birch Plywood
Height 25.2"
Width 20.5"
Depth 30.9"
Weight 104 lbs.
Manufacturer Part Number KS118


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