QSC KS118 Active Subwoofer

With its direct-radiating 18-inch driver and a 3,600-watt Class D power amplifier, the QSC KS118 ensures high sound pressure levels and a dynamic, musical reproduction of the lowest frequencies.

The integrated digital signal processing ensures performance optimisation and protection, whilst offering advanced functions such as the configuration of two subwoofers into a cardioid system. The robust and elegant enclosure is easy to transport and features convenient carrying handles as well as four low-noise castors.

The subwoofer has two locking XLR female/jack combo sockets and two XLR male outputs.

An M20 threaded flange on the top panel allows for easy vertical mounting of full-range loudspeakers using a 35 mm speaker pole.

QSC KS118 Features

• Very high output power with impressive deep bass reproduction
• 3,600-watt Class D power amplifier module
• High-performance DSP for optimum performance and maximum protection
• Direct-radiating 18-inch long-throw driver
• Choice of omnidirectional or cardioid polar pattern (cardioid setup requires at least 2 subwoofers)
• DEEP™ mode emphasises the extremely low-frequency range
• Adjustable crossover and delay
• Scenes can be saved and recalled for frequently used applications
• Elegant, professional appearance suits any environment
• Robust, lacquered wooden cabinet for a long service life
• Multifunction display, 2 selection buttons and a rotary encoder
• Vertical or horizontal orientation (M20 flange for threaded speaker poles when mounted vertically)
• Four low-noise, robust castors

Technical Specifications

• Design: Direct-radiating
• Woofer: 18-inch cone diaphragm
• Frequency response (-6 dB): 41 Hz – 98 Hz
• Frequency range (-10 dB): 35 Hz – 111 Hz
• Nominal dispersion angle: Selectable omnidirectional or cardioid pattern (cardioid setup requires at least 2 subwoofers)
• Max. sound pressure level SPL1: Peak 136 dB / 1 m
• Power amplifier: Class D, 3600 W (peak)
• Cooling: Low-noise, speed-controlled fan
• Controls: Power switch, gain control, rotary encoder and 2 x selection buttons
• Indicators: 2 power LEDs (front and rear), 3 x LEDs for input signal and limiter active
• Connections: 2 x XLR/female jack combo sockets with locking mechanism, 2 x XLR/male (loop-through output), 1 x mains cable with locking mechanism
• AC power supply: Universal mains adaptor 100 to 240 VAC, 50 to 60 Hz
• Power consumption (1/8 power): 100 VAC, 3.6 A / 120 VAC, 3.0 A / 240 VAC, 1.7 A
• Casing material: 18 mm birch plywood
• Colour: Black (RAL 9011)
• Grille: Black, powder-coated steel grille (16 gauge)
• Dimensions (H x W x D): 640 x 520 x 785 mm (including castors)
• 25.2 x 20.5 x 30.9 inches (including castors)
• Weight excluding packaging: (including castors) 47 kg / 104 lb