ROCKFORD FOSGATE Power 400 Watt Class-AD 2-Channel Amplifier

The Power T400X2ad is an ultra-compact, high efficiency 400 Watt stereo amplifier. Features multi-impedance Constant Power, input/output clip detection, top mounted controls and dual fan forced induction cooling. Perfect for hybrid, electric, small cars, trucks, motorcycles, and side-by-side UTVs.

The Power T400X2ad is an ultra-compact, high efficiency 400 Watt stereo amplifier. Features multi-impedance Constant Power, input/output clip detection, top mounted controls and dual fan forced induction cooling. Perfect for hybrid, electric, small cars, trucks, motorcycles, and side-by-side UTVs.

CE Compliant

This product fulfills all essential safety and environmental requirements as defined in the European Directives (768/2008 EC).

CEA-2006 Compliant

Power ratings on Rockford Fosgate amplifiers conform to CEA-2006 industry standards. These guidelines mean your amplifier's output power ratings are REAL POWER numbers, not inflated marketing ratings.

Class AD

This technology allows the amplifier to produce more power with less current draw from the vehicle's charging system.

Constant Power

Constant Power is a patented circuit topology that provides instantaneous delivery of output power over varying impedance loads.

C.L.E.A.N. Set-Up

Patented circuit with in/out clip LEDs to help match a source to amp and optimize output.

3-Stage Airflow

3-stage airflow method effectively exhausts heat and ensures your amplifier runs cooler for optimum performance.

DSM

DSM utilize 1% tight-tolerances improving efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature.

Engineered In The USA

CEA-2006 Compliant

CEA-2006 Power Rating
200W x 2 @ 4Ω
≤1.0% THD+N

Number of Channels

2

Total Power 
(Sum of Rated Power)

400 Watts

Rated Power 
(RMS Continuous Power)

200 Watts x 2 @ 4-Ohm 
200 Watts x 2 @ 2-Ohm 
400 Watts x 1 @ 4-Ohm Bridged

Dynamic Power 
(PVC/PowerCube®)

223 Watts x 2 @ 4-Ohm 
248 Watts x 2 @ 2-Ohm 
449 Watts x 1 @ 4-Ohm Bridged

Bridgeable

Yes 
Terminals: Left (+) Right (-)

Frequency Response

20Hz - 20kHz +/-1dB

Input Sensitivity

150 mV - 12 V

Circuit Topology Class

Class AD

Efficiency (average)

>75%

Total Harmonic Distortion (THD+Noise)

4-Ohm: <1.0% 
2-Ohm: <1.0%

Signal Input

High/Low Level Input: 4-Pin harness

Signal Output

-

Tone Controls

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

Crossover Controls

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

Remote Controls

Optional PLC2 provides Punch Level Control

Visual Indicators

Power: Blue LED 
Protect: Red LED 
Input Clip: Red LED³ 
Output Clip: Blue/Violet/Red LED^1,2,3 

LED Color Legend: 
¹BLUE: <0.5% THD 
²VIOLET: 1% THD 
³RED: 10%+ THD

Power Wire Gauge

8 AWG

Power Input Connector

Detachable Compression Terminal

Speaker Wire Gauge

16 AWG

Speaker Output Connector

4-Pin Harness

Cooling

Dual Fan Cooled

Heatsink

Operating Voltage

9 - 16 VDC

Recommended Fuse 
(not included)

60 A

Average Current Draw (13.8V Music)

23 A

Max. Current Draw (13.8V Sinewave)

45 A

Suggested Alternator

75 A

Dimensional Diagram

Dimensions (H x W x D)

1.6 x 4.3 x 7 (in.) 
4.1 x 10.8 x 17.8 (cm)

Shipping Weight

2.9 Lbs. (1.31 Kg.)