The BEHRINGER EUROLIVE B1800X is equipped with an 18" woofer that delivers 400 Watts at 8 Ohms and a sound pressure level of 98 dB. Typically, it would be used in combination with the EUROLIVE B1020/1220/1520 fullrange speaker systems to increase low-frequency performance in applications where you need more low-end power, i.e. dance clubs or rock gigs. Its newly designed die-cast pole socket makes the B1800X suitable for stacking with standard spacer rods. In addition, the new B1800X is equipped with an internal passive crossover, allowing you to build a stack without the need for additional amps or external crossovers.