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
•  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

Rated Power (RMS Continuous Power)    
100 Watts x 4 @ 4-Ohm 
100 Watts x 4 @ 2-Ohm
200 Watts x 2 @ 4-Ohm Bridged
Dynamic Power (PVC/PowerCube®)    
128 Watts x 4 @ 4-Ohm
152 Watts x 4 @ 2-Ohm
290 Watts x 2 @ 4-Ohm Bridged
Total Power (Sum of Rated Power)    400 Watts 
Number of Channels    4
Bridgeable    Yes
Front Terminals: Left (+) Right (-)
Rear Terminals: Left (+) Right (-)
CEA-2006 Compliant    
CEA-2006 Power Rating
100W x 4 @ 4Ω
≤1.0% THD+N
Circuit Topology Class    Class AD
Speaker Wire Gauge    16 AWG
Power Wire Gauge    8 AWG
Max. Current Draw (13.8V Sinewave)    55 A
Average Current Draw (13.8V Music)    28 A
Recommended Fuse (not included)    60 A
Suggested Alternator    75 A
Operating Voltage    9-16 VDC
Crossover Controls    
High-Pass: 50Hz - 250Hz @ 12dB/Octave Butterworth
Low-Pass: 50Hz - 250Hz @ 12dB/Octave Butterworth
All-Pass: Yes
Frequency Response    20Hz - 20kHz +/-1dB
Input Sensitivity    150 mV - 12 V
Signal Input    
Front High/Low Level Input: 4-Pin harness
Rear High/Low Level Input: 4-Pin harness
Power Input Connector    
Detachable Compression Terminal
Speaker Output Connector    
Front Channels: 4-Pin Harness
Rear Channels: 4-Pin Harness
Heat Sink Type    Extruded Aluminum
Cooling    Dual Fan Cooled
Visual Indicators    
Power: Blue LED
Protect: Red LED
Input Clip: Red LED3
Output Clip: Blue/Violet/Red LED1,2,3
LED Color Legend:
1BLUE: <0.5% THD
2VIOLET: 1% THD
3RED: 10%+ THD
Efficiency (average)    >75%
Total Harmonic Distortion (THD+Noise)    
4-Ohm: <1.0%
2-Ohm: <1.0%
Tone Controls    
Treble: 0 to +14 dB @ 12.5 kHz
Bass: 0 to +18 dB @ 45 Hz
Remote Controls    -    
Dimensions (H x W x D)    
1.6 x 4.3 x 8.3 (in.) 4.1 x 10.8 x 21.1 (cm)
Shipping Weight    
3.4 Lbs. (1.54 Kg.)