Power Marine 400 Watt Class-AD 4-Channel Amplifier

Rockford FosgateSKU: TM400X4AD

$ 0

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
  • Differential inputs with high level auto turn-on feature
  • 8 AWG power/ground connector w/ upgraded RCA connectors
  • Remote-Out feature when using high level inputs
  • 2/4 channel input switch
  • 4 Ohm bridged capable
  • C.L.E.A.N. input/output clip detection and indicator LEDs
  • 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
  • 2-Year Warranty

Call or email for price. 


Number of Channels:


Total Power (Sum of Rated Power):

400 Watts

Rated Power (RMS Continuous Power):

100 Watts x 4 @ 4-Ohm
100 Watts x 4 @ 2-Ohm
200 Watts x 2 @ 4-Ohms Bridged


Front Terminals: Left (+) Right (-)
Rear Terminals: Left (+) Right (-)

Frequency Response:

20Hz - 20kHz +/-1dB

Input Sensitivity:

150 mV to 12 V

Circuit Topology Class:

Class AD

Efficiency (Average):


Signal Input:

Front High/Low Input: 4-Pin harness
Rear High/Low Input: 4-Pin harness

Tone Controls:

Treble: 0 to +14dB @ 12.5kHz
Bass: 0 to +18 dB @ 45Hz

Crossover Controls:

High-Pass: 50Hz - 250Hz @ 12dB/Octave Butterworth
Low-Pass: 50Hz - 250Hz @ 12dB/Octave Butterworth
All-Pass: Yes

Remote Control:


Visual Indicators:

Power: Blue LED
Protect: Red LED
Input Clip: Red LED
Output Clip: Blue/Violet/Red LED

LED Color Legend:
BLUE: <0.5% THD
RED: 10%+ THD

Power Wire Gauge:


Power Input Connector:

Detachable Compression Terminal

Speaker Wire Gauge:

16 AWG

Speaker Output Connector:

Front: 4-Pin Harness
Rear: 4-Pin Harness


Dual Fan Cooled

Dimensions (H x W x D):

1.6 x 4.3 x 8.3 (in.)
4.1 x 10.8 x 21.1 (cm)

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