Waterproof amplifier design with IP66 and IP67 certifications High-efficiency Class-D technology Huge power from a small footprint รป rated at 850 watts Dynamic Power Dual turn-on modes (choice of DC offset or 12 V trigger) Includes inline power and ground couplers that need no soldering or crimping Stainless-steel mounting hardware included Subwoofer amplifier only.. AMP 300 WATT X 1 MONO