Profile: Alpine Electronics Of America, Inc. manufactures electronic components for computer, communications and car electronic equipments. We also supply mobile electronics systems. Our products include AV head units, amplifiers, speakers, subwoofers and bluetooth wireless products. Our mono amp MRP-M500 is a class-D design that gives more power, cleaner signal & tighter, deeper bass without draining the battery. Class-D provides continuous clean power to the speakers, operating at 80 percent efficiency far greater than conventional Class-A or B amplifiers. We also provide remote control for marine applications.