BEHRINGER EUROLIVE B1800HP High-performance 2200-Watt powered subwoofer for PA applications World-famous, British engineered 18" TURBOSOUND speaker Extremely high sound pressure level and incredibly accurate bass Precise reproduction of ultra-low frequencies for "bulletproof" punch and impact State-of-the-art 2200-Watt Class-D amplifier with comprehensive over-excursion, thermal and clip limit protection