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QSC KS118 3600w 18" Active Subwoofer

Ideal for Live Music Venues, Clubs & DJ's


The KS118 Is a versatile, high output active subwoofer with excellent low frequencies that is suitable for live music venues, clubs, and DJ’s. A durable construction and in-built handles make it simple to transport, while an M20 threaded pole means you can position it vertically along with full-range loudspeakers.

Power & Performance

Featuring an 18" direct radiating driver (which is powered using a 3600 W Class D amp), this subwoofer delivers serious power – with high sound pressure levels that maintain dynamic sound reproduction, even at very low frequencies. With DSP on-board, this works to protect and optimise the performance of the system. It also allows you to arrange two units in a cardioid manner.


  • Includes Four Low Noise, Heavy-Duty Casters
  • Very High Output
  • Excellent Low Frequency Performance
  • 6-Year Warranty (Once You have Registered Your Product)
  • Vertical or Horizontal Positioning (Use the M20 Threaded Pole Receiver for a Vertical Setup)
  • Durable, Wood Enclosure
  • Scenes Allows for Commonly-Used Applications to be Saved and then Recalled for Future Use
  • Adjustable Delay and Crossover
  • DEEP Mode – Very Low Frequency Extension
  • 3600-Watt Class D Amp Module
  • 18" Excursion Direct Radiating Driver
  • Cardioid/Omnidirectional Radiation Modes (Cardioid Requires at Least 2 Units)


  • Dimensions (H x W x D): 25.2" x 20.5" x 30.9"
  • Weight (Including Casters): 47kg
  • Accessories (Included): 4 x Low-Noise, Heavy Duty Casters
  • Colour: Black
  • Grille: 16-Gauge Black Powder Coated Steel
  • Enclosure: 18mm Birch Plywood
  • Configuration: Direct Radiating
  • LF Transducer: 18-Inch (460mm) Cone
  • Frequency Response (-6dB): 41 Hz – 98 Hz
  • Frequency Range (-10dB): 35 Hz – 111 Hz
  • Nominal Coverage Angle: Omni-Directional or Cardioid Radiation Modes (Cardioid Setup Requires min. 2 Units
  • Maximum Rated SPL: 136 dB @ 1 m (Peak)
  • Amplifier: Class D, 3600 W (Peak)
  • Cooling: Low-Noise, Variable Speed Fan
  • Controls: Power On/Off, Gain Control, Rotary Encoder, 2 x Selection Buttons
  • Indicators: 2 x Power LED (Front and Rear), Input Signal LED, Limiter Active LED
  • Connectors: 2 x Locking XLR/F ¼ in Combo, 2 x XLR/M (Loop-Thru Output), 1 x Locking IEC Power Connector
  • AC Power Input: Universal Power Supply 100 – 240 VAC, 50-60 Hz
  • AC Power Consumption (1/8th Power): 100 VAC, 3.6A / 120 VAC, 3.0 A / 240 VAC, 1.7 A
Inc. VAT

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