KS118 New Layout

Powered 18-inch Subwoofer

Write your review
Contact Us
We're sorry, but this item is unavailable.
Free -Day Shipping
Only Left!
Preorder Today
Coming Soon
Get it  if you order in   Price:
×
Get It Sooner
Get it by when you order within
Call to order!
Find Authorized Dealer
Buy Online
Rent / Buy Local
1 of 6

Image Gallery

1 of 6

Commanding Low End
The QSC KS118 is a very high-output active subwoofer delivering impressive low-frequency performance for mobile entertainers, AV production and venues. Featuring an 18-inch direct-radiating driver powered by a 3600 watt Class D amplifier, it produces high sound pressure levels with dynamic, musical reproduction. Onboard DSP optimizes performance, offers selectable DEEP™ mode for ultra-low sub-bass response, and enables advanced cardioid array capabilities.

Key Features

Core Performance​​​​​​

  • 3600-watt peak power
  • 18-inch long-excursion driver
  • Covers low-end frequencies down to 35 Hz (-10 dB)
  • 136 dB @ 1 m (peak SPL)

Advanced Control & DSP

  • Onboard Digital Signal Processing (DSP): Optimizes, tunes, and protects the system under heavy use
  • Selectable DEEP™ Mode: Provides deep sub-bass extension to capture subterranean frequencies without risking distortion or over-excursion.

Professional Directivity & Array Control

  • Vertical and Horizontal Deployment options.
  • Cardioid Array Capabilities: Easily set up highly directional cardioid sub configurations when deploying two or more units, significantly dropping low-frequency stage volume.
  • Omnidirectional or Directional Steering: Control your bass dispersion based on venue acoustics and specific audience coverage needs.

Tour-Ready Durability & Portability

  • Rugged Wood Enclosure: Premium wood cabinet construction with a heavy-duty painted finish
  • Effortless Mobility: Equipped with four heavy-duty, smooth-rolling casters on the rear panel

Directivity Control Options
 

KS118 Training Videos

KS118 Accessories

KS118 Transport Cover
Soft cover made with heavy-duty Nylon/Cordura® material for the KS118 or LS118, with grille guard.

learn more

KS Lock Out Cover
Lock Out Cover for KS Series. Screw-down tamper-proof cover for LCD menu and Input Gains.

learn more

Loudspeaker Pole Extension (16‑inch)
16-inch (406 x 35 mm) loudspeaker extension pole with male and female M20 thread.

learn more

Resources

Model KS118
Configuration Direct Radiating
LF Transducer: 460 mm (18 in), Cone
Frequency Response (-6 dB) 41 Hz - 98 Hz
Frequency Range (-10 dB) 35 Hz - 111 Hz
Nominal Coverage Angle: Omni-directional or cardioid radiation modes (cardioid setup requires min. 2 units)
Maximum Rated SPL1: 136 dB @ 1 m (peak)
Amplifier: Class D
3600W (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 ¼ inch 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 (1/8th Power): 100 VAC, 3.6 A / 120 VAC, 3.0 A / 240 VAC, 1.7 A
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 in
Carton Dimensions (H×W×D): 360 × 360 × 496 mm
14.2 × 14.2 × 19.5 in
Net Weight: 47 kg / 104 lb (including casters)
Shipping Weight: 56.5 kg / 124.6 lb
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


1Peak SPL is measured on-axis, at 1 meter, using Pink Noise, Crest factor 10 dB unweighted.

All specifications are subject to change without notice.

Due to unprecedented demand, this product may currently be out of stock at some retailers. We continue to replenish supply regularly and are working to fulfill all orders as rapidly as possible. Please check with your dealer for the latest delivery updates.

Product Registration
Buy Authorized