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QSC E18SW - 18" Passive Subwoofer

£798.00 £665.00 (ex. vat)


  • QSC E18SW
  • QSC E18SW Rear
  • QSC E18SW

QSC E18SW - 18" Passive Subwoofer

The QSC E18SW 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 is 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 QSC 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.

QSC E18SW Features

  • 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.
  • Titanium diaphragm for high fidelity and long life
  • Rugged tour-grade textured paint
  • Foam-lined perforated steel grill
  • Includes speaker pole


  • Configuration: 1 x 18-inch, subwoofer, non-powered
  • Frequency Range (-10 dB): 50Hz to 120Hz
  • Power capacity: Continuous/peak 800 W / 3200 W
  • Sensitivity: 97dB, 1W@1m 
  • Ouput (peak SPL @ 1 m): 132dB
  • Drivers: 
    • LF - 457 mm (18-inch) driver with 100 mm (4-inch) voice coil
  • Nominal Impedance:
  • Cross-over: Recommended 80-120Hz LPF
  • Input connectors: 2x NL4, 1 barrier strip
  • Enclosure: Rectangular, plywood, black texture paint finish. Four side-mounted handles. Rear panels provision for optional casters. Perforated, powder-coated steel grille with foam lining. 
  • Mounting and suspension: M20 threaded pole-mount socket
  • Net weight: 43 kg / 94 lbs
  • Shipping weight: 48 kg / 105 lbs
  • Dimensions: 590x616x605mm / 23.2x24.2x23.8in
Manufacturer QSC
Model E18SW

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