The E118sw is a high-performance direct radiation subwoofer with a single, 800W, 18-inch, aluminum frame woofer. It’s designed to produce crushing low-end for live performance with kick-drum and bass in the PA or for high-level, high-energy dance music. A threaded, M20 pole socket and speaker pole are provided for sub/satellite use with any of the E Series two-way models. For portable applications it includes attachment points for four optional casters. The subwoofer’s 4-ohm impedance means that a single woofer can be optimally powered by a less expensive amplifier.

E Series loudspeakers will perform very well with any quality, professional power amplifier – but by taking advantage of the complete E Series Entertainment System, more performance and options are available. Today’s powered loudspeakers rely on finely tuned digital signal processing (DSP) to achieve a higher level of performance. When used with QSC GXD or PLD amplifiers or with a QSC TouchMix digital mixer, E Series loudspeakers can also take advantage of advanced DSP. QSC has developed E Series DSP settings for all three platforms. These settings support a variety of applications including live sound reinforcement (with and without subwoofers), stage monitoring, dance music and karaoke. 


  • High output, professional quality sound with  800 W continuous power
  • E Series Entertainment System – Advanced digital signal processing tunings and options using QSC GXD, PLD amplifiers or TouchMix digital mixers.
  • E Series Entertainment System DSP Tunings are now available for PLD, CXD and GXD processing amplifiers:

             - For PLD/CXD visit Amplifier Navigator Software
             - For GXD visit the GXD Firmware Updater

  • Rugged tour-grade textured paint
  • Foam-lined perforated steel grill
  • E18SW includes speaker pole
Model E118sw
Configuration  1 × 18-inch, subwoofer, non-powered
Frequency Response (-6 dB) 37 Hz to 230 Hz
Frequency Range (-10 dB) 32 Hz to 230 Hz
Power capacity1: continuous/peak 800 W / 3200 W
Sensitivity 98 dB, 1 W @ 1 m 
Coverage Angle N/A
Ouput2 (peak SPL @ 1 m) 133 dB





457 mm (18 in) driver with 102 mm (4 in) voice coil


Nominal Impedance
Cross-over Recommended 80 – 120 Hz LPF
Input connectors 2 × NL4, 1 × barrier strip
Enclosure Rectangular, plywood, black texture paint finish. Four side mounted handles.
Rear panel provision for optional 4-inch casters. Perforated, powder-coated steel grille with foam lining.
Mounting and suspension M20 threaded pole-mount socket 

610 mm (24 in) pole included

Speaker Dimensions
590 × 616 × 605 mm
23.2 × 24.2 × 23.8 in
Carton Dimensions
710 × 690 × 712 mm
28 × 27 × 28 in
Net weight 43 kg / 95 lb
Shipping weight 46.3 kg / 102 lb

1 Power that the device can withstand for two hours without permanent change in acoustical, mechanical, or electrical characteristics, greater than 10%, using IEC60268 noise based on nominal impedance in the cabinet with Xover, full range 30 Hz 12 dB / octave.
2 With QSC Processing

*Specifications subject to change without notice.