Thanks to the ultra-compact cast-aluminium chassis?(IP64 rated), the?HMP 4D?amplifier is nature-proof, being?the ideal choice for UTV/ATV/motorcycle installations. It?features an incredible power/size ratio and?an easy setup thanks to the integrated crossover filter.?The Front End section features a complete and bypassable?crossover system, providing full system design?flexibility with or without external processors, offering the?user endless connection possibilities with any source.?Inputs feature a special balanced circuitry, ensuring high?rejection against electro-magnetic interferences, for?noise-free results.