Rockford Fosgate PM400X4 400 Watt 4-Channel Marine Amplifier high-performance audio • 1000 watts RMS mono

• 1000 watts RMS mono output for powerful subwoofer performance• 1-ohm stable design for high-performance subwoofer systems• high-efficiency Class-D amplifier architecture• IP55 weather-resistant aluminum chassis• compact size ideal for saddlebag and hidden installs• factory radio compatibility via USS integration

⭐⭐⭐⭐⭐ "Perfect upgrade for my truck

PowerSync and MasterSync: Combine amplifiers for massive output or control multiple amps with a single unit

vocal clarity Door/rear factory upgrade Larger openings with more output & bass presence

Rockford Fosgate PM400X4 400 Watt 4-Channel Marine Amplifier high-performance audio • 1000 watts RMS monoPower your marine or motorsport audio system with the Rockford Fosgate PM400X4, a 400 Watt 4 Channel Marine Amplifier designed to deliver dynamic, high quality sound in the harshest environments. Engineered with Class A B technology and featuring a conformal coated PC board, this amplifier is the ultimate choice for boats, ATVs, and other motorsport applications. Whether youre looking to drive a 4 way front stage rear fill setup or combine component