Soundstream PSA5.4000D PSA5-4000D | IP66 Waterproof 5-Channel Powersport, Marine & Motorcycle Amplifier – 4,000W Max

The Soundstream PSA5.4000D is a rugged, compact, and waterproof 5-channel amplifier engineered to deliver powerful, high-fidelity sound in any environment. Built to dominate in powersport, marine, and motorcycle applications, this amplifier is ideal for cruising the highway, conquering trails, or cutting through open waters.

Delivering a massive 4,000 watts of max power, the PSA5.4000D features full-range Class D circuitry, ensuring efficient performance and seamless integration. It supports 2-ohm stereo and 1-ohm mono configurations for maximum flexibility, powering four channels for mids/highs plus a dedicated subwoofer channel, making it an all-in-one solution for complete system builds.

With IP66 waterproof protection, a military-grade PCB, and a PWM MOSFET power supply, the PSA5.4000D is built to withstand the harshest elements. Users can fine-tune their sound with variable crossovers, a subsonic filter, bass boost, and high/low-pass filters to achieve clean, controlled output from lows to highs.