QSC LS 118 - 3600W 18" Powered Subwoofer

  • For Plug-and-Play High-Tech AV Installs
  • 18" Woofer
  • 3600W Class-D Amplifier Module
  • XLR and powerCON I/O Connectors
  • QSC LEAF Waveguide
  • QSC RapidDeploy Rigging Technology
  • QSC AWARE + QSC SysNav
  • Birch Enclosure with Polyurea Finish
  • Flexible Deployment
  • Includes 4" Casters, powerCON Power Cord
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  • Very high output (138 dB peak SPL) with impressive low frequency performance
  • Purpose-designed, 18-inch (460 mm) long excursion direct radiating driver
  • Energy-efficient, 3600 W peak power Class D amplifier module with Power Factor Correction and extremely low AC consumption
  • Acoustic Linear Phase (ALP) design provides complementary coherence between QSC loudspeakers deployed in the same audio system delivering a uniform listening experience across the entire venue.
  • QSC SysNav™ (System Navigator) App allows the user to easily design, configure, control, monitor and apply signal processing to individual subwoofers, full arrays or groupings of both.
  • Network solution includes digital audio-over-IP (Dante®) for interoperability with other audio equipment and seamless control and monitoring integration into the Q-SYS Ecosystem via Q-SYS Inventory Extensions
  • Omni-directional or cardioid radiation modes (cardioid setup requires min. 2 units)
  • Selectable DEEP™ mode for extremely low frequency extension
  • Rugged wooden enclosure with Polyurea coating for lasting durability
  • Four low-noise, heavy-duty casters
  • Vertical or horizontal deployments (M20 threaded pole receivers) combined with array frame/ground-stack adapters or loudspeaker poles.
  • Complemented by LA108 and LA112 active line array loudspeakers
  • Industry-best global 6-Year Extended Warranty with product registration.


ConfigurationDirect radiating, active subwoofer
LF Transducer460 mm (18-inch), cone
Frequency Response (-6 dB)41 Hz - 98 Hz
Frequency Range (-10 dB)35 Hz - 111 Hz
Nominal Coverage AngleOmni-directional or cardioid radiation modes (cardioid setup requires min. 2 units)
Maximum Rated SPL1 (peak)136 dB @1 m
Amplifier (peak)Class D, 3600 W
CoolingLow noise, variable speed fan
ControlsRotary push encoder
2 x Push buttons (Menu, ID)
Display Screen61 mm (2.4-inch) Full color display area (240 x 320 pixels)
IndicatorsPower LED
Limiter active LED
Standby active LED
2 x Signal LED
ConnectorsXLR Female (Analog In)
XLR Male (Analog Thru)
2 x RJ45 EtherCON (Dante® and QSC SysNav™ In/Thru)
2 x PowerCON TRUE1 (AC Power Inlet/Outlet)
AC Power InputUniversal power supply 100–240 VAC, 50–60 Hz
AC Power Consumption2100 VAC, 3.6 A / 120 VAC, 3.0 A / 230 VAC, 1.7 A
Enclosure Material15 mm birch plywood with Polyurea coating
Attachment Points8 x M10 (for individual vertical or horizontal suspension/flying)
2 x M20 (for vertical or horizontal loudspeaker pole or ground-stack deployments)
ColorBlack (RAL 9011)
Grille16 GA Powder coated steel
Dimensions (H × W × D)640 × 520 × 790 mm
25.2 × 20.5 × 31.1 inches
Net Weight50 kg / 110 lb (including casters)
Shipping Weight62.6 kg / 138 lb
Included Accessories4 x Heavy-duty, low noise 4-inch casters, 1 x PowerCON TRUE1 power cable
RegulatoryUL, CE, FCC Class B
More Information
MPN (manufacturer part number)LS118
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