Purpose-built for installations on boats of all sizes, the new line of amplifiers is engineered for long-lasting performance.Offered in two configurations, the 400 Watt, 2-channel MS-AM402 and the 500 Watt, 4-channel MS-AM504 marine amplifiers are perfect for enhancing powerful audio performance throughout any vessel. The new FUSION amplifiers are housed in marine grade chassis with stainless steel bottom and end plates that provide a stunning finish and excellent environmental resistance. Conformal-coated circuitry adds protection from salt air and moisture ingress to maximize product life.Ensuring clean and powerful amplification of the input signal, the 2 Ohm per channel class AB design provides excellent sound quality. The units include regulated amplifier technology, which sustains high power outputs at the lowest voltage for greater efficiency and reliable performance, and enough power to allow the option of connecting an extra pair of speakers in parallel, ideal for a multi-zone system. A pass-through nickel-coated RCA output enables linking of multiple amplifiers for enhanced system performance. Stainless connectors and screw terminals improve signal flow for optimum output.