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Rockford Fosgate 400 Watt 4 Channel Bridgeable Class A/B Amplifier Power T400-4

SKU RF-T400-4
Save 20% Save 20%
Original price $499.99
Original price $499.99 - Original price $499.99
Original price $499.99
Current price $399.99
$399.99 - $399.99
Current price $399.99

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Rockford Fosgate 400 Watt 4 Channel Bridgeable Class A/B Amplifier Power T400-4

The T400-4 amplifier is another super high quality powerhouse from Rockford and is perfect for front/rear fading stereo systems or when dedicated amplification is required between front stage speakers and rear subwoofer(s). Thanks to the Dynamic Thermal Management cooling system, the small chassis design insures it can be installed in any location - like under front seats. The "Differential Input" circuitry helps eliminate any electronically induced noise or hum that could be picked up by the input cables, allowing only clean signals to enter the amplifier. This is a great compact amp that runs cooler and delivers the legendary Rockford performance you have come to expect.

This Listing Includes:

(1) Rockford Fosgate 4-channel amplifier T400-4

(4) 1-1/2" Self-tapping screws

(1) Owners Manual


-Dynamic Thermal management Cooling System

-Audiophile grade speaker connections

-Preamp inputs

-24dB/octave crossover

-2/4 channel input switch

-MOSFET power supply

-MOSFET output stage

-4 Gauge power/ground connectors

-CEA-2006 compliant


Number of Channels: 4

Total Power(Sum of Rated Power):400 Watts RMS

Rated Power (RMS Continuous Power):

60 Watts x 4 @ 4-Ohm

100 Watts x 4 @ 2-Ohm

200 Watts x 2 @ 4-Ohm Bridged

2-Ohm x 2 Bridged Stable

Dynamic Power (PVC/PowerCube):

84 Watts x 4 @ 4-Ohm 0 Res

139 Watts x 4 @ 2-Ohm 0 Res

272 Watts x 2 @ 4-Ohm Bridged

Bridgeable: Yes

Frequency Response: 20Hz to 20kHz +/- 1dB

Input Sensitivity:150 mV to 4 V

Circuit Topology: Class A/B

Efficiency (average):

69% @ 4-Ohm

68% @ 2-Ohm

Total Harmonic Distortion (THD+Noise)

4-Ohm: less than 1.0%

2-Ohm: less than1.0%

Signal Input:

Front Low level: 1 RCA pair

Rear Low level: 1 RCA pair

Input Switch: 2CH / 4CH

Signal Output: n/a

Tone Controls:

Front Channels - Punch EQ

Treble: 0dB to +12dB @ 12kHz

Bass: 0dB to +18dB @ 45Hz

Rear Channels - Punch EQ

Treble: 0dB to +12dB @ 12kHz

Bass: 0dB to +18dB @ 45Hz

Crossover Controls:

Front High-Pass (HP): 50-500Hz 24dB/octave Butterworth

Front Low-Pass (LP): 50-500Hz 24dB/octave Butterworth

Rear High-Pass (HP): 50-500Hz 24dB/octave Butterworth

Rear Low-Pass (LP): 50-500Hz 24dB/octave Butterworth


2.14 x 8.14 x 13.66 (in)

5.42 x 20.68 x 34.69 (cm)


Shipping Weight 11.90 Lbs. (5.39 Kg.)

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