QSC KS118 
The KS118 is a very high output active subwoofer producing impressive low frequencies for mobile entertainers, AV production and clubs/venues applications.
 
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, KS-LOC security cover and 35 mm loudspeaker pole accessories available
6-Year Warranty with product registration
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.