QSC E118sw Passive Subwoofer

SKU: e118sw

18″ externally powered, live sound-reinforcement subwoofer. 


About this item



QSC E118sw Passive Subwoofer

The QSC E118sw Passive Subwoofer 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 performances 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 GXDPLD 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 a speaker pole
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/peak800 W / 3200 W
Sensitivity98 dB, 1 W @ 1 m
Coverage AngleN/A
Ouput2 (peak SPL @ 1 m)133 dB




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


Nominal Impedance
Cross-overRecommended 80 – 120 Hz LPF
Input connectors2 × NL4, 1 × barrier strip
EnclosureRectangular, 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 suspensionM20 threaded pole-mount socket610 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 weight43 kg / 95 lb
Shipping weight46.3 kg / 102 lb


There are no reviews yet.

Be the first to review “QSC E118sw Passive Subwoofer”

Your email address will not be published. Required fields are marked *

This product was featured in our Installation projects


The Huntington Theatre Company is a famous non-profit performing arts organization located in Boston, Massachusetts. It was established in 1982 and has since developed into

Our mission at Parsons Audio is to provide solutions that help engineers, educators, musicians, studio, and venue owners realize their goals. When the owners of

2022 has been a busy year for us here at Parson’s Audio. We’ve been busy doing sound system installations all over New England. The Groton

Different Solutions For You


Professional Installation Services

Flawless audio systems for studios and venues


Audio Solutions for Education

Elevate learning experiences with tailored audio solutions


Outstanding Video Solutions

Visual experiences with state-of-the-art video technology