MASSIVE POWER: The subwoofer set includes two METIS-18PWG powered subwoofers. The METIS-18PWG is powered by a built-in Class-D amplifier and handles 700 Watts RMS / 1400 Watts Program / 2400 Watts (8-ohm) peak power and generates punchy and tight bass VERSATILE INPUT OUTPUT CONNECTIONS: Easy to integrate the METIS-18PWG stage subwoofer with your PA rig. It has 2 XLR-1/4 combo and 2 RCA inputs, 2 through and 100Hz high-pass XLR outputs, 2 RCA outputs and provides great connection and flexibility. The 35mm pole mount socket accommodates a satellite speaker for optimal full-range PA performance HIGH-PERFORMANCE AND LIGHTWEIGHT: The Class-D amplifier efficiently provides enormous power without weighing you down. Thanks to the Class-D topology, the high-output 18 PA subwoofer is powerful and lightweight