MB Quart NA2-400.1, Nautic Mono Block Compact Powersports Subwoofer Amplifier -400 Watts

Marine Grade Protection / IPX Rating    Amplifiers are ASTM certified which defines that marine amplifiers must use conformal coated PC boards to resist corrosion from salt spray & moisture. IPX5 Low Noise Preamplifier Circuit    Q-Stasis Pre Amplifier Stage: The highly engineered Q-Stasis pre-amplifier stage reduces incoming noise from source units dramatically improving sound quality. RCA Inputs    2 Pair RCA Nickel-Plated: High temperature impact resistant with hex screw terminals that allow for secure connections and is erosion resistant. Operation Mode    Mono operation: Designed to power 1 subwoofer or subwoofer system. Crossover Type    LPF: Complete control of amplifier signal, essential when using two or more amplifiers. Class / Topology    Full Range Class D: Highly efficient circuit topology which helps the amplifer develop a lot of power in a very small heatsink. Output Device Technology    PWM MOSFET Power Supply: Stable power through the PC board with minimal heat gen