Electro-Voice QRx 218S  Compact dual 18" subwoofer

Electro-Voice QRx 218S Compact dual 18" subwoofer

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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)


Frequency Range (-10 dB) 31 - 250kHz
Weatherized No
Flying Optional


Nominal Impedance (Passive)
Speaker Type Subwoofer
Woofer Size 18inch
Powered or Passive Passive
Frequency Response (-3 dB)¹ 38 - 125Hz
Max. SPL/1m (calc)² 139dB
LF Transducer Two 18-inch EVX180B
Power Rating 4800W
System Power Handling (Continuous/Program/Peak) 1200//4800Watts
Crossover Frequency 100Hz (24 dB/octave)
Enclosure Material 13-Ply Birch Plywood
Sensitivity 1 W/1 m 102dB
Available Color Black, White, Unfinished
Height 39.96" (1015mm)
Width 22.05" (560mm)
Recommended High-Pass Frequency 35Hz (12 dB/octave)
Internal Crossover No
Depth 23.7" (602mm)
Weight Net 149.91lbs (68kg)
Family QRx
Chassis Size 457.2 mm
Coverage (Nominal -6 dB) Essentially Omni
Axial Sensitivity (SPL, 1 W @ 1 m) 102dB
Input Connections 2 Neutrik® NL4

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