QRx 118S Compact 18" subwoofer by Electro-Voice

QRx 118S

Compact 18" subwoofer

  • Concert-proven high-output performance
  • Accurate transient detail
  • EVX-180B woofer for superior linear excursion
  • High sensitivity, 137 db maximum SPL (peak)
  • Power handling: 600 W continuous, 2400 W peak
  • Rectangular 13-ply birch vented enclosure
  • Built-in handles and 1 3/8-inch pole-mount receptacle
  • Threaded T-nuts (4) for casters or dollies
  • Black EVCoat finish (white by special order)


Frequency Range (-10 dB) 30 - 250kHz
Weatherized No
Flying No

Speaker Type Subwoofer
Woofer Size 18inch
Powered or Passive Passive
Frequency Response (-3 dB)¹ 45 - 150Hz
LF Nominal Impedance
Max. SPL/1m (calc)² 137dB
LF Transducer 18-inch EVX180B
Power Rating 2400W
System Power Handling (Continuous/Program/Peak) 600//2400Watts
LF Power Handling 600Watts
Crossover Frequency 100Hz (24 dB/octave)
Enclosure Material 13-ply birch plywood
Available Color Black or white
Sensitivity 1 W/1 m 98dB
Height 902mm (35.51")
Width 450mm (17.72")
Recommended High-Pass Frequency 36Hz (12 dB/octave)
Depth 600mm (23.62")
Weight Net 47.5kg (104.72 lbs)
Family QRx
Chassis Size 457.2 mm
Nominal Impedance
Coverage (Nominal -6 dB) Essentially Omni
Axial Sensitivity (SPL, 1 W @ 1 m) 98dB
Input Connections 2 Neutrik® NL4

Recommended Amplifiers

For optimal sound system performance, Electro-Voice recommends the following amplifiers for QRx 118S.

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