The Turbosound TSP118B-AN-UL features a 3,000 Watt and a powered 18" front loaded with bass reflex subwoofer enclosure that is optimally tuned for enxtended low frequency response. The Turbosound TSP118B-AN is designed to work individually without a controller. The Turbosound TSP118B-AN can gives very high output FOH performance and is perfectly suited for a broad range of music and live sound reinforcement applications.