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ROCKFORD FOSGATE

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

$329.99 USD
T400X2ad

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
CE Compliant

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

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CE Compliant
CE Compliant

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

CEA-2006 Compliant
CEA-2006 Compliant

Power ratings on Rockford Fosgate amplifiers conform to CEA-2006 industry standards. These guidelines mean your amplifier's ...

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CEA-2006 Compliant
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
Class AD

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

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Class AD
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

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

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

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

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

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

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3-Stage Airflow
3-Stage Airflow

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

DSM
DSM

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

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DSM
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
Engineered In The USA

These Avatars are a personal signature from the Rockford Fosgate team member(s) who designed and engineered ...

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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 LED1,2,3 

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.)