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Power Marine 400 Watt Class-ad 4-Channel Amplifier


The Power TM400X4ad 400 Watt 4-channel ultra-compact, amplifier is built on Rockford Fosgate’s proprietary Class-ad technology, featuring Constant Power to produce the same output at both 4-Ohm and 2-Ohm impedances. Flexible vehicle integration enabled through low-level and high-level inputs with auto turn-on. Top Mounted Controls allow easy access to built-in crossover and C.L.E.A.N. input/output clip detection circuits. The 3-stage thermal lock extrusion with dual fan forced induction keeps everything cool while real-time thermal/protection schemes safeguard the amplifier.


  • Rockford Fosgate proprietary Class-ad technology
  • 4/2 Ohm muti-impedance Constant Power
  • 8 AWG power/ground connector, upgraded RCA connectors
  • Remote-Out feature when using high level inputs
  • 4 Ohm bridged capable
  • Top Mounted Controls
  • Dual fan cooled
  • Real time thermal sensing
  • Dual extruded heat sinks
  • Discrete surface mount technology
  • Marine grade two part epoxy coating on circuit boards


Class-ad Amplifier

4 x 100 / 100 Watts RMS @ 4 / 2  Ω

2 x 200 Watts RMS @ 4 Ω bridged

Highpass 50-250 Hz

Lowpass 50-250 Hz

Punch Bass EQ 0-18dB and/or Punch Treble EQ 0-12dB

2/4 CH Input Select Switch

High Level Inputs with Auto Turn On

Optional PLC2 Bass-Remote with Clipping-LED

Incl. Performance Certificate

Dimensions 108 x 41 x 211 mm

EUR 579,00

Manufacturer's suggested retail price. Technical changes and mistakes reserved.