QRx 218S

Compact dual 18-inch subwoofer

  • High-level extended LF with concert proven performance
  • Accurate transient detail
  • Available in Standard and Riggable (L-Track) versions
  • EVX-180B woofers for superior linear excursion
  • High sensitivity, 139 db maximum SPL (peak)
  • Power handling: 1200 W continuous, 4800 W peak
  • Rectangular 13-ply birch vented enclosure
  • Built-in handles and sealed pocket wheels (Standard )
  • Integrated pole-mount receptacle (Standard )
  • Black EVCoat finish (white by special order)


Available Color Black, White, Unfinished
Axial Sensitivity (SPL, 1 W @ 1 m) 102dB
Chassis Size 457.2 mm

Coverage (Nominal -6 dB) Essentially Omni
Crossover Frequency 100Hz (24 dB/octave)
Depth 23.7" (602mm)
Enclosure Material 13-Ply Birch Plywood
Family QRx
Flying Optional
Frequency Response (-10 dB) 31 - 250Hz
Frequency Response (-3 dB) 38 - 125Hz
Height 39.96" (1015mm)
Input Connections 2 Neutrik® NL4
Internal Crossover No
LF Transducer Two 18-inch EVX180B
Max. SPL/1m (calc) 139dB
Nominal Impedance (Passive)
Power Rating 4800W
Powered or Passive Passive
Recommended High-Pass Frequency 35Hz (12 dB/octave)
Sensitivity 1 W/1 m 102dB
Speaker Type Subwoofer
System Power Handling (Continuous/Program/Peak) 1200//4800Watts
Weatherized No
Weight Net 149.91lbs (68kg)
Width 22.05" (560mm)
Woofer Size 18inch

Similar Products

Dual 18-inch Passive Subwoofer

QRx 118S
Compact 18-inch subwoofer

Complementary Products

QRx 153/75
15-inch three-way full-range loudspeaker


Name Language Size Date
Portable Speaker Family Brochure EN 5.25MB Mar 24, 2016 Download
Speaker & Electronics Catalog EN 18.91MB Jun 10, 2015 Download
Name Language Size Date
QRx-218S Engineering Data Sheet EN 399KB Sep 24, 2013 Download
Name Type Size Date
QRx218S 7oc-trans PNG 315KB May 4, 2017 Download


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