Marine Amplifier M2 Series - MonoDesigned to withstand the elements, the M2 500X1 Element Ready amplifier is a 500 watt, class D model, capable of operating at 4 or 2 mono. This amplifier is extremely efficient because of its class D technology which reduces demand on the electrical system. The amp also features C. L. E. A. N. circuitry to help you adjust your gain settings, a P. O. W. E. R. Supply that generates more power as voltage increases, and integrated Punch EQ that corrects