Rockford Fosgate Power T400X4ad 400W 4 Channel Amplifier
Available in store only and subject to our fitment (fitment cost not included).
The Power T400X4ad is an ultra-compact, high efficiency 400 Watt 4-channel 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.
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| Information | |
| Specifications |
Recommended Fuse
(not included) 60 A
Operating Voltage
9 - 16 VDC
Input Sensitivity
150 mV to 12 V
Number of Channels
4
Crossover Controls
High-Pass: 50Hz - 250Hz @ 12dB/Octave Butterworth
Low-Pass: 50Hz - 250Hz @ 12dB/Octave Butterworth All-Pass: Yes Signal Input
Front High/Low Level Input: 4-Pin harness
Rear High/Low Level Input: 4-Pin harness Speaker Output Connector
Front: 4-Pin Harness
Rear: 4-Pin Harness Speaker Wire Gauge
16 AWG
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: Dimensions (H x W x D)
1.6 x 4.3 x 8.3 (in.)
4.1 x 10.8 x 21.1 (cm) Efficiency (average)
>75%
Average Current Draw (13.8V Music)
28 A
Max. Current Draw (13.8V Sinewave)
55 A
Suggested Alternator
75 A
Rated Power
(RMS Continuous Power) 100 Watts x 4 @ 4-Ohm
100 Watts x 4 @ 2-Ohm 200 Watts x 2 @ 4-Ohm Bridged Bridgeable
Yes
Front Terminals: Left (+) Right (-) Rear Terminals: Left (+) Right (-) Tone Controls
Treble: 0 to +14 dB @ 12.5 kHz
Bass: 0 to +18 dB @ 45 Hz Signal Output
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Power Input Connector
Detachable Compression Terminal
Power Wire Gauge
8 AWG
Remote Controls
—
Circuit Topology Class
Class AD
Frequency Response
20Hz-20kHz +/-1dB
Shipping Weight
3.4 Lbs. (1.54 Kg.)
Dynamic Power
(PVC/PowerCube®) 128 Watts x 4 @ 4-Ohm
152 Watts x 4 @ 2-Ohm 290 Watts x 2 @ 4-Ohm Bridged Total Harmonic Distortion (THD+Noise)
4-Ohm: <1.0%
2-Ohm: <1.0% Total Power
(Sum of Rated Power) 400 Watts
CEA-2006 Compliant
100W x 4 @ 4Ω ≤1.0% THD+N Dimensional Diagram
![]() Damping Factor
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Signal-to-Noise (CEA)
>90 dB
Channel Separation
>60 dB
Common Mode Rejection
>60 dB
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