Dual 15" Two-Way Self-Powered Speaker System; 2 x 275 watt LF and 100 watt HF Crown® Class D Amplifiers. DSP-Featured Input Section With Selectable EQ. Two 15" Differential Drive®  Woofers and a 1.5” Annular Polymer Diaphragm Compression Driver. DuraFlex™-Covered, Plywood Enclosure, Tough Polyurethene Protective End-Caps, Steel Foam Backed Grille, Die-Cast Metal Handles, Non-Skid Rubber Feet. Light Weight, 38.2 kg (84 lbs).