Rockford Fosgate PM400X4 400 Watt 4-Channel Marine Amplifier

Power 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 you’re looking to drive a 4-way front-stage/rear-fill setup or combine component speakers with subwoofers, the PM400X4 offers the versatility and performance needed to meet your audio demands. Its C.L.E.A.N. Set-up technology simplifies installation, while Punch EQ provides up to an 18dB bass boost for deeper, richer sound. With a marine-grade aluminum heatsink and epoxy-coated circuit boards, this amplifier is built to withstand water, salt, and UV exposure for years of reliable performance.

Key Features:

• Element Ready™ Design: Built to withstand water, salt, and UV exposure for marine and motorsport use.
• Versatile Power:
  • 50W x 4 @ 4Ω
  • 100W x 4 @ 2Ω
  • 200W x 2 @ 4Ω bridged
• C.L.E.A.N. Set-Up: Simplifies gain setting for optimized audio performance.
• Punch EQ: Boosts bass frequencies by up to 18dB for a powerful low-end sound.
• Dynamic Power Output: Maintains exceptional sound clarity even at high volumes.
• Conformal Coated PC Board: Protects against moisture, salt, and corrosion.
• Compact & Durable: Cast aluminum heatsink and marine-grade hardware for rugged reliability.

Specifications:

• Circuit Topology: Class A/B
• Frequency Response: 20Hz – 20kHz +/- 1.0dB
• Input Sensitivity: 150mV – 12V
• Crossover Controls:
  • High-Pass/Low-Pass (50Hz–250Hz) @ 12dB/Octave Butterworth
• Recommended Fuse: 60A
• Power Wire Gauge: 8 AWG – 4 AWG
• Dimensions: 2.38" H x 7.76" W x 11.03" D
• Shipping Weight: 10.8 lbs

Applications:
The Rockford Fosgate PM400X4 is ideal for marine and motorsport audio systems, including boats, ATVs, and UTVs. Its robust construction and high-performance output ensure consistent sound quality in any environment.