QSC KS118: 18" Direct Radiating Subwoofer
QSC KS118: 18" Direct Radiating Subwoofer

QSC KS118: 18" Direct Radiating Subwoofer

Regular price$2,699.00
Shipping calculated at checkout.

  • In stock, ready to ship
  • Backordered, shipping soon


  • Very high output including impressive low frequency performance
  • 3600 W class D amplifier module
  • 18" (460 mm) long excursion direct radiating driver
  • Omni directional or cardioid radiation modes (cardioid setup requires min. 2 units)
  • Selectable deep mode for extremely low frequency extension
  • Adjustable crossover and delay
  • Scenes for commonly used applications that can be saved / recalled
  • Refined, professional and elegant appearance in any application
  • Rugged painted wood enclosure for lasting durability
  • Vertical or horizontal deployment (M20 threaded pole receiver for vertical setup)
  • Four low noise, heavy duty casters
  • Optional transport cover, KS-LOC security cover and 35 mm loudspeaker pole accessories available
  • 6 year warranty including product registration

The KS118 is a very high output active Subwoofer producing impressive low frequencies for mobile entertainment, AV production, clubs and performance venues.  Featuring an 18" Direct Radiating driver powered by a 3600 W class D amplifier, the KS118 delivers high sound pressure levels through dynamic and musical sound reproduction of very low frequencies.

On board DSP optimizes and protects system performance as well as offers advanced capabilities such as the ability to array two units in a cardioid arrangement.  Highly transportable, the rugged enclosure features comfortable handles and four low noise casters.  An M20 threaded pole receptacle accepts a 35 mm pole for easy vertical deployment through full range loudspeakers.

Specifications KS118
Configuration Direct Radiating
LF transducer 460 mm (18"), cone
Frequency response (- 6 dB) 41 - 98 hz
Frequency range (- 10 dB) 35 - 111 hz
Nominal coverage angle Omni directional or cardioid radiation modes (cardioid setup requires a minimum of 2 units)
Maximum rated SPL1 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 selection buttons
Indicators 2 power LED (front and rear)
input signal LED
limiter active LED
Connectors 2 locking XLR / F 1 / 4" combo
2 XLR / M (loop thru output)
1 locking IEC power connector
AC power input universal power supply 100 – 240 VAC, 50 – 60 hz
AC power consumption (1 / 8 power) 100 VAC, 3.6 A / 120 VAC, 3.0 A / 240 VAC, 1.7 A
Enclosure details:
Enclosure 15 mm birch plywood
Color black (RAL 9011)
Grille 16 gauge black powder coated steel
Speaker dimensions (H × W × D) 640 × 520 × 785 mm
25.2 × 20.5 × 30.9"
Carton dimensions (H × W × D) 572 × 743 × 896 mm
22.5 × 29.3 × 35.3"
Net weight 47 kg / 104 lbs (including casters)
Shipping weight 56.5 kg / 124.6 lbs
Regulatory CE, WEEE, UL, China RoHS, RoHS II, FCC class B
Included accessories 4 low noise, heavy duty casters
Optional accessories KS118 CVR transport cover, KS-LOC lock out cover
SP-26 and SP-36 loudspeaker poles, SP-16X extension pole

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

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