P400X4

Punch 400 Watt 4-Channel Amplifier P400X4

The Punch P400X4 is a 4-channel amplifier producing 100 Watts into all four channels at 2-Ohm. The P400X4 is perfect for a 4-way full-range system or a 3-way system having a front stage with subwoofers on the rear channels.

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1 Review
$269.99
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Overview

The P400X4 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 P400X4 is an excellent amplifier choice for virtually any vehicle.

  • High level input capable with Auto Turn-On circuit
  • Features C.L.E.A.N. Set-up
  • 12dB/octave Butterworth crossover
  • On-board Punch EQ with +18dB boost @ 45Hz
  • Muted turn on
  • Stealth top mounted control panel
  • Cast aluminum heatsink
  • Short circuit protection
  • Over current protection
  • 1 Year Warranty
Technologies
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.

Balanced Differential Inputs
Balanced Differential Inputs

Differential inputs eliminate noise picked up by signal cables.

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Balanced Differential Inputs
Balanced Differential Inputs

Differential inputs eliminate noise picked up by signal cables.

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.

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.

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.

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.

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.

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.

Specifications
CEA-2006 Compliant
CEA-2006 Guidelines CEA-2006 Power Rating
50W x 4 @ 4Ω
≤1.0% THD+N
Number of Channels
4
Total Power
(Sum of Rated Power)
400 Watts
Rated Power
(RMS Continuous Power)
50 Watts x 4 @ 4-Ohm
100 Watts x 4 @ 2-Ohm
200 Watts x 2 @ 4-Ohm Bridged
Dynamic Power
(PVC/PowerCube®)
82 Watts x 4 @ 4-Ohm
137 Watts x 4 @ 2-Ohm
266 Watts x 2 @ 4-Ohm Bridged
Bridgeable
Yes
Frequency Response
20Hz to 20kHz +/- 1.0dB
Input Sensitivity
150 mV - 12 V
Circuit Topology Class
Class A/B
Efficiency (average)
67% @ 4-Ohm
Total Harmonic Distortion (THD+Noise)
4-Ohm: <1.0%
2-Ohm: <1.0%
Signal Input
Hi/Low level: 2 RCA pair
Signal Output
-
Tone Controls
Front Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or
Front Punch EQ2 Treble: 0dB to +12dB @ 12.5kHz
Rear Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or
Rear Punch EQ2 Treble: 0dB to +12dB @ 12.5kHz
Function depends upon LP/AP/HP switch position
Crossover Controls
Front High-Pass/Low-Pass (HP/LP): 50Hz-250Hz @ 12dB/octave Butterworth
Rear High-Pass/Low-Pass (HP/LP): 50Hz-250Hz @ 12dB/octave Butterworth
All-Pass: Yes
Remote Controls
-
Visual Indicators
Power/Protect/Thermal LED
Input Clip LED3
Output Clip LED1,2,3

LED Color Legend:
1BLUE: <0.5% THD
2VIOLET: 1% THD
3RED: 10%+ THD
Power Wire Gauge
8 AWG to 4 AWG
Power Input Connector
Captive C-Clamp
Speaker Wire Gauge
8 AWG to 18 AWG
Speaker Output Connector
Captive C-Clamp
Cooling
Convection
Heatsink
Operating Voltage
9 - 16 VDC
Recommended Fuse
(not included)
60 A
Average Current Draw (13.8V Music)
30 A
Max. Current Draw (13.8V Sinewave)
60 A
Suggested Alternator
75 A
Dimensional Diagram
Dimensions (H x W x D)
2.38 x 7.76 x 11.03 (in)
6.05 x 19.71 x 28.02 (cm)
Shipping Weight
10.8 Lbs. (4.89 Kg.)
Compatibility
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!

Reviews

Loud as hell

This is not the first time om buying a Rockford Fosgate amp to my car.
Its 4×50 watt but it plays more than it should and with Good quality on the sound.
Im using it in 3 channel mode. Kit in front and a 12 inch subwoofer.
And this amp plays really good.
Thumbs up again RF.
It sounds like a trance festival in my car.

5.0

1 Review
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