400 Watt 4-Channel Amplifier P400-4

400 Watt 4-Channel Amplifier P400-4

The Punch P400-4 is a 4-channel amplifier producing 100 Watts into all four channels at 2-Ohm. The P400-4 for cars and trucks is perfect for a 4-way full-range system or a 3-way system having a front stage with subwoofers on the rear channels.The P400-4 punch amplifier includes:

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Overview

The P400-4 car amplifier is perfect for 4-way front-stage/rear-fill or 3-way front-stage/subwoofer systems. Simply drop a pair of component speakers on the front channels and subs on the rear and BOOM - you got "The PUNCH." With its flexible design, the P400-4 is an excellent amplifier choice for virtually any vehicle.

Longing for a subwoofer? Check out our collection of subwoofers here.

  • 12dB/octave Butterworth crossover
  • 2/4 channel input switch
  • MOSFET power supply
  • MOSFET output stage
  • 4 Gauge power/ground connectors
  • Audiophile grade speaker connections
  • Top Mounted LED Indicators
  • 1 Year Warranty
Technologies
CEA-2006 Compliant
CEA-2006 Compliant

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

DSM
DSM

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

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.

NOMAD
NOMAD

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

Punch EQ2
Punch EQ2

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

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 ...

TO-247 MOSFETs
TO-247 MOSFETs

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

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 ...

Specifications
Rated Power
(RMS Continuous Power)
50 Watts x 4 @ 4-Ohm
100 Watts x 4 @ 2-Ohm
200 Watts x 2 @ 4-Ohm Bridged
CEA-2006 Compliant
Number of Channels
4
Total Power
(Sum of Rated Power)
400 Watts RMS
Dynamic Power
(PVC/PowerCube®)
Front Channels
86 Watts x 2 @ 4-Ohms 0° Res
144 Watts x 2 @ 2-Ohms 0° Res

Rear Channels
85 Watts x 2 @ 4-Ohms 0° Res
142 Watts x 2 @ 2-Ohms 0° Res
Bridgeable
Yes
Efficiency (average)
71% @ 4-Ohm
70% @ 2-Ohm
Crossover Controls
Front High-Pass (HP): 50Hz-500Hz 12dB/octave Butterworth
Front Low-Pass (LP): 50-500Hz 12dB/octave Butterworth
Rear High-Pass (HP): 50Hz-500Hz 12dB/octave Butterworth
Rear Low-Pass (LP): 50-500Hz 12dB/octave Butterworth
Signal Input
Low level: 2 RCA pair
Tone Controls
Front Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or
Front Punch EQ2 Treble: 0dB to +12dB @ 12kHz
Rear Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or
Rear Punch EQ2 Treble: 0dB to +12dB @ 12kHz
Function depends upon LP/AP/HP switch position
Signal Output
Power Input Connector
Block
Speaker Output Connector
Screw terminal barrier strip
Power Wire Gauge
4 AWG
Speaker Wire Gauge
8 AWG to 18 AWG
Heat Sink Type
Cast aluminum
Cooling
Convection
Remote Controls
Optional PEQ Remote Punch EQ
(overrides built-in Punch EQ2 for rear channels only)
Visual Indicators
Power
Thermal
Protect
Circuit Topology Class
Class A/B
Frequency Response
20Hz to 20kHz +/- 1.0dB
Dimensions (H x W x D)
2.25 x 7.625 x 13.02 (in)
5.71 x 19.37 x 33.07 (cm)
Shipping Weight
8.89 Lbs.
(4.03 Kg.)
Dimensional Diagram
Support

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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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