








QSC KS118 - 18-inch 3600 Watt Active Subwoofer
- 18" inches active subwoofer
- 3600 W with a Class D amplifier module
- M20 fittings available for either horizontal or vertical position (included)
- Low-noise and effective cooling system
- Four low-noise, heavy-duty casters

QSC KS118 - 18-inch 3600 Watt Active Subwoofer
Product Details
Product Specifications
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SPECIFICATIONS |
KS118 |
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Configuration |
Direct Radiating |
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LF Transducer |
18-inch (460 mm), Cone |
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Frequency Response (-6 dB) |
41 Hz - 98 Hz |
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Frequency Range (-10 dB) |
35 Hz - 111 Hz |
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Nominal Coverage Angle |
Omni-directional or cardioid radiation modes (cardioid setup requires min. 2 units) |
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Maximum Rated SPL1 |
136 dB @ 1 m (peak) |
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Amplifier |
Class D |
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3600W (peak) |
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Cooling |
Low-noise, variable speed fan |
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Controls |
Power On/Off |
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Gain Control |
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Rotary encoder |
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2 x selection buttons |
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Indicators |
2 x Power LED (front and rear) |
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Input Signal LED |
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Limiter active LED |
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Connectors |
2 x locking XLR/F ¼ inch combo |
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2 x XLR/M (Loop-thru Output) |
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1 x locking IEC power connector |
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AC Power Input |
Universal power supply 100 – 240 VAC, 50 – 60 Hz |
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AC Power Consumption (⅛ power) |
100 VAC, 3.6 A / 120 VAC, 3.0 A / 240 VAC, 1.7 A |
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Enclosure Details |
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Enclosure |
18 mm birch plywood |
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Color |
Black (RAL 9011) |
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Grille |
16-gauge Black Powder Coated Steel |
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Dimensions (HWD) inches |
25.2" × 20.5" × 30.9" |
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Dimensions (HWD) mm |
640 mm x 520 mm x 785 mm |
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Net Weight |
(including casters) 47 kg (104 lbs) |
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Shipping Weight |
56.5 kg (124.5 lbs) |
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Regulatory |
CE, WEEE, UL, China RoHS, RoHS II, FCC Class B |
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Included Accessories |
4 x Low-Noise, Heavy Duty Casters |
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Optional Accessories |
KS118-CVR Transport Cover, KS-LOC Lock-Out Cover |
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SP-26 and SP-36 Loudspeaker Poles, SP-16X Extension Pole |
Product Features
The KS118 is a very high output active subwoofer producing impressive low frequencies for mobile entertainment, AV production, clubs and performance venues. Featuring an 18-inch direct radiating driver powered by a 3600 Watt Class D amplifier, the KS118 delivers high sound pressure levels with dynamic and musical sound reproduction of very low frequencies
On-board DSP optimizes and protects system performance as well as offers advanced capabilities such as the ability to array two units in a cardioid arrangement. Highly transportable, the rugged enclosure features comfortable handles and four low noise casters. An M20 threaded pole receptacle accepts a 35 mm pole for easy vertical deployment with full-range loudspeakers
Key Features:
- Very high output with impressive low-frequency performance
- 3600 Watt Class D amplifier module
- 18 inch (460 mm) long excursion direct radiating driver
- Omni-directional or cardioid radiation modes (cardioid setup requires min. 2 units)
- Selectable DEEP mode for extremely low-frequency extension
- Adjustable crossover and delay
- Scenes for commonly-used applications that can be saved/recalled
- Refined, professional and elegant appearance in any application
- Rugged painted wood enclosure for lasting durability
- Vertical or horizontal deployment (M20 threaded pole receiver for vertical setup)
- Four low-noise, heavy-duty casters
- Optional transport cover, temporary weather cover, KS-LOC security cover and 35 mm loudspeaker pole accessories available
- 6-Year Warranty with product registration
What's included
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
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Customer Support
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Contact Us
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