Behringer B1800XPRO High- Performance 1800 Watt 18'' PA Subwoofer. High-performance 1600-Watt subwoofer for PA applications. Extremely powerful 18'' long-excursion driver provides incredibly deep bass and acoustic power. Extremely high sound pressure level (100 dB half space 1 W @ 1 m). 40 Hz - 300 Hz frequency range (-10 dB), impedance 8 Ohms. Precise reproduction of ultra-low frequencies with a clear, powerful punch. Switchable crossover for optional passive or bi-amping operation mode. Pole socket for mounting with commercial spacer poles. Ergonomically shaped handles for easy transport. Rugged steel grill for optimal speaker protection. Professional speaker connectors, compatible with Neutrik Speakon *. High-quality components and exceptionally rugged construction ensure long life. Conceived and designed by Germany