Our Eurolive B1800XP 3,000-Watt active subwoofer provides the ultimate in low-frequency reproduction, and the built-in stereo crossover makes it ideally suited for use with any of our active 2-way loudspeakers. Packed with a powerful 3,000-Watt Class-D amplifier, a TURBOSOUND 18" long-excursion Low-Frequency (LF) transducer and an incredible array of professional features, the B1800XP produces extreme levels of low-end punch, with the definition and clarity typically reserved for much larger systems!