Order Number: QRX-218S-BLK@L
2 x 18" Subwoofer 1200 W; black

More Ordering Information

QRx 218S

Compact Dual 18" 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" Passive Subwoofer

QRx 118S
Compact 18" Subwoofer

Complementary Products

QRx 153/75
15" Passive 3-Way Loudspeaker


Name Language Size Date
Portable Speaker Family Brochure EN 31.44MB Oct 4, 2017
Speaker & Electronics Catalog EN 18.91MB Jun 10, 2015
QRx Twist & Shout Flyer EN 601KB Dec 26, 2007
Name Type Size Date
QRx EASE3 EXE 350KB Dec 26, 2007
QRx Series EASE Data ZIP 431KB Dec 26, 2007
Name Language Size Date
QRx-218S Engineering Data Sheet EN 399KB Sep 24, 2013
Name Type Size Date
QRx AcoustaQwik EXE 301KB Dec 26, 2007
QRx Arrayshow EXE 1.07MB Dec 26, 2007
Name Type Size Date
QRx Presets for RACE ZIP 167KB Dec 26, 2007
R.A.C.E Software Executable EXE 9.57MB Dec 26, 2007
Name Language Size Date
Audio 101 - Loudspeaker Basics EN 3.02MB Dec 13, 2012
EASE Data Explanation EN 934KB Nov 17, 2015
PA Bible 02: Power Handling Capacity EN 422KB Dec 26, 2007
PA Bible 11: Portable Sound Systems for the Small Club EN 470KB Dec 26, 2007

QRx218S 7oc-trans


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