Soundstream ST4.1000DB 4-channel marine/powersports amplifier

The latest and greatest of Class-D full range technology allows us to pack 10 pounds of KICK YOUR ASS in less than 2-pound chassis. Once regarded as “dirty power”, class Ds stable performance,  to high power capability, maximum efficiencies, and low tolerance components, rivals traditional full-range applications. HIGHLIGHT FEATURES: 90 watts RMS x 4 at 4 ohms (125 watts RMS x 4 at 2 ohms) Built-In Bluetooth Ideal for boats, ATVs, side-by-sides, golf carts, and more Silver chassis with switchable Black or white top plates High-Efficiency Class D Full-Range Amplifiers Hybrid Aluminum Alloy Heatsink for Optimum Dissipation Military Grade SMT PCB Maintains Dynamic Performance  Variable high- and low-pass filters (35-250 Hz, 12 dB/octave)