QSC E118SW Black

Passive Subwoofer

QSC E118SW Black is an 18-inch passive subwoofer designed to add low-frequency extension to live stage, theater, DJ, karaoke, and event production systems. With high power handling, a rugged bass-reflex enclosure, and an included speaker pole, it is built for sub/satellite setups with QSC E Series full-range loudspeakers.

QSC E118SW Black Competitive Differences

• 18-inch woofer with 4-inch voice coil delivers powerful low-frequency output
• 800W continuous and 3200W peak power handling for demanding sound reinforcement use
• 133dB maximum SPL provides strong bass projection for live and DJ applications
• 37 Hz to 230 Hz frequency response at -6 dB supports deep subwoofer performance
• Includes M20 threaded pole socket and 24-inch speaker pole for sub/satellite setups

QSC E118SW Black Description

The QSC E118SW Black is built for users who need serious low-end reinforcement from a passive subwoofer. Its direct-radiation bass-reflex design uses a single 18-inch woofer with a 4-inch voice coil, making it suitable for live music, DJs, dance music, karaoke, theater reinforcement, and event production.

With 800W continuous and 3200W peak power handling, the E118SW Black is designed to be used with a suitable external amplifier. QSC recommends using a speaker processor or an amplifier with integrated DSP to manage crossover, limiting, and equalization for best performance.

The E118SW Black can be integrated into the QSC E Series Entertainment System when paired with compatible QSC GXD or PLD amplifiers, or with a QSC TouchMix digital mixer. These platforms provide factory-tuned DSP presets for applications such as live sound reinforcement, dance music, karaoke, and systems using subwoofers.

For durability, the enclosure is built from rugged plywood with a black textured paint finish and a foam-lined perforated steel grille. Four side handles help with transport and positioning, while the top-mounted M20 threaded socket and included 24-inch speaker pole make it easy to pair the subwoofer with E Series full-range loudspeakers.

E118SW Black Features

• 18-inch passive subwoofer for low-frequency extension
• Direct-radiation bass-reflex enclosure design
• 800W continuous and 3200W peak power handling
• 18-inch woofer with 4-inch voice coil
• 133dB maximum SPL output
• 4-ohm nominal impedance
• Frequency response of 37 Hz to 230 Hz at -6 dB
• Compatible with QSC E Series full-range loudspeakers
• Supports QSC E Series DSP tunings with compatible QSC amplifiers and TouchMix mixers
• 2 x NL4 and 1 x barrier strip input connectors
• M20 threaded pole mount socket
• Includes 24-inch speaker pole
• Rugged plywood enclosure with black textured paint finish
• Foam-lined perforated steel grille
• Four side handles for transport and positioning
• Attachment points for four optional casters

E118SW Black Specifications

• Speaker Type: Passive subwoofer
• Enclosure Type: Bass-reflex
• LF Driver: 1 x 18 in woofer
• Voice Coil: 4 in (10 cm)
• Power Handling: 800W RMS continuous, 3200W peak
• Nominal Impedance: 4 ohms
• Frequency Response (-6 dB): 37 Hz - 230 Hz
• Frequency Range (-10 dB): 32 Hz - 230 Hz
• Maximum SPL: 133dB
• Sensitivity: 98 dB
• Audio I/O: 2 x speakON NL4, 1 x barrier strip
• Mounting: 1 x M20 threaded pole socket on top
• Handles: 4 side handles
• Construction: Plywood enclosure with metal grille
• Finish: Black textured paint
• Dimensions: 23 x 24 x 24 in (59 x 62 x 61 cm)
• Weight: 94 lb (43 kg)
• Package Weight: 102.05 lb
• Box Dimensions: 28.3 x 28 x 27 in

What's In The Box

• QSC E118SW Black passive subwoofer
• 24-inch speaker pole
• Limited 3-year manufacturer warranty

QSC E118SW-BK (QSC E118SWBK)