T400-4

Power 400 Watt 4-Channel Amplifier T400-4

The Power T400-4 is a 4-channel amplifier capable of producing 100 Watts into each of its four channels at 2-Ohms. The T400-4 can run a 4-way full-range system or use component speakers on the front with subwoofers on the rear.

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$399.99
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Overview

The T400-4 amplifier 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, the small chassis design insures it can be installed in any location – like under front seats.

  • 24dB/octave crossover
  • 2/4 channel input switch
  • MOSFET power supply
  • MOSFET output stage
  • 4 Gauge power/ground connectors
  • Audiophile grade speaker connections
  • 2 Year Warranty
Technologies
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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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 this fanatic product. This statement illustrates our commitment to being Designed and Engineered in the U.S.A.

DTM
DTM

Dynamic Thermal Management evenly distributes excess heat across entire amplifier heatsink.

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DTM
DTM

Dynamic Thermal Management evenly distributes excess heat across entire amplifier heatsink.

MEHSA<sup>3</sup>
MEHSA3

MEHSA3 reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life span.

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MEHSA<sup>3</sup>
MEHSA3

MEHSA3 reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life span.

NOMAD
NOMAD

NOMAD is a "real time" analog computer that protects your amplifier from shorting speaker wires and ...

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NOMAD
NOMAD

NOMAD is a "real time" analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances.

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.

Punch EQ2
Punch EQ2

Onboard equalizer with up to +18dB @ 45Hz and/or up to +12dB boost at 12kHz.

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Punch EQ2
Punch EQ2

Onboard equalizer with up to +18dB @ 45Hz and/or up to +12dB boost at 12kHz.

TO-247 MOSFETs
TO-247 MOSFETs

(left-OLD | right-NEW)
Rockford Fosgate amps use custom TO-247 MOSFETs. These have 60% more ...

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TO-247 MOSFETs
TO-247 MOSFETs

(left-OLD | right-NEW)
Rockford Fosgate amps use custom TO-247 MOSFETs. These have 60% more metal tab area for more power capacity, lower impedance and improved heat dissipation over traditional TO-220 MOSFETs found in competitor amps.

TRANS&#149;<em>ana</em>
TRANS•ana

Trans•ana is a Class A/B topology that simplifies the signal path of the amplifier allowing the ...

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TRANS&#149;<em>ana</em>
TRANS•ana

Trans•ana is a Class A/B topology that simplifies the signal path of the amplifier allowing the signal to travel through the amplifier at a lower voltage. The result is greater reliability and exceptional sound quality.

Specifications
Recommended Fuse
(not included)
60 A
Damping Factor
>200
Signal-to-Noise (CEA)
>90 dB
Channel Separation
>60 dB
Common Mode Rejection
>65 dB
Shipping Weight
11.90 Lbs. (5.39 Kg.)
Average Current Draw (13.8V Music)
30 A
CEA-2006 Compliant
CEA-2006 Power Rating
60W x 4 @ 4Ω
≤1.0% THD+N
Max. Current Draw (13.8V Sinewave)
60 A
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
Total Harmonic Distortion (THD+Noise)
4-Ohm: <1.0%
2-Ohm: <1.0%
Efficiency (average)
69% @ 4-Ohm
68% @ 2-Ohm
Dimensional Diagram
Operating Voltage
9 - 16 VDC
Suggested Alternator
75 A
Input Sensitivity
150 mV to 4 V
Number of Channels
4
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
Total Power
(Sum of Rated Power)
400 Watts RMS
Bridgeable
Yes
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
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
Signal Input
Front Low level: 1 RCA pair
Rear Low level: 1 RCA pair
Input Switch: 2CH / 4CH
Signal Output
n/a
Power Input Connector
Block
Power Wire Gauge
8 AWG to 4 AWG
Speaker Output Connector
Screw terminal barrier strip
Speaker Wire Gauge
8 AWG to 18 AWG
Heat Sink Type
Cast aluminum
Cooling
Convection
Remote Controls
Optional Remote Punch EQ
(overrides rear channel built-in Punch EQ)
Visual Indicators
Power
Thermal
Protect
Circuit Topology Class
Class A/B
Frequency Response
20Hz to 20kHz +/- 1dB
Dimensions (H x W x D)
2.14 x 8.14 x 13.66 (in)
5.42 x 20.68 x 34.69 (cm)
Support

Return Authorization

Contact the Authorized Rockford Fosgate Dealer you purchased this product from. If you need further assistance, call 1-800-669-9899 for Rockford Customer Service. You must obtain an RA# (Return Authorization number) to return any product to Rockford Fosgate. You are responsible for shipment of product to Rockford.


View Process

Accessories Wiring Wizard

Available Wiring Diagrams

Please consult your amplifier owner's manual for lowest recommended impedance.





















Speaker Polarity

Your woofer may use one of the following to identify (+/-) terminals.

Positive +

Red Post

Purple (4Ω)

Red (8Ω)

Negative -

Black Post

No Dot

No Dot

Speaker Polarity

Your woofer may use one of the following to identify (+/-) terminals.

Positive +

Red Post

Purple (4Ω)

Red (8Ω)

Negative -

Black Post

No Dot

No Dot

Wiring Kits

ARE YOU ENGINEERED TO ROCK?

Get a 1-Year extended amplifier warranty when using a matching Rockford Fosgate installation kit.

We want you to get the maximum performance and reliability from your Rockford Fosgate amplifier. We're so certain using the right cables make a difference, we'll give you and additional 1-Year amplifier warranty when using a matching installation kit!

  • 1 Purchase a Rockford Fosgate Punch or Power amplifier.
  • 2 Add the correct amplifier installation kit.
  • 3 Get an additional 1 year amplifier warranty FREE!

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