Rockford Fosgate Punch 400 Watt 4-Channel Amplifier - P400X4
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Literature

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.

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

This product fulfills all essential safety and environmental requirements as defined in the European Directives (768/2008 EC).

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

Differential inputs eliminate noise picked up by signal cables.

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

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

DSM

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

MEHSA3

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

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

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

Patented circuit with in/out clip LEDs to help match a source to amp and optimize output.

Specifications
Number of Channels4
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
BridgeableYes
Frequency Response20Hz to 20kHz +/- 1.0dB
Input Sensitivity150 mV - 12 V
Circuit Topology ClassClass A/B
Efficiency (average)67% @ 4-Ohm
Total Harmonic Distortion (THD+Noise)4-Ohm: <1.0%
2-Ohm: <1.0%
Signal InputHi/Low level: 2 RCA pair
Signal Output-
Tone ControlsFront 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 ControlsFront 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 IndicatorsPower/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 Gauge8 AWG to 4 AWG
Power Input ConnectorCaptive C-Clamp
Speaker Wire Gauge8 AWG to 18 AWG
Speaker Output ConnectorCaptive C-Clamp
CoolingConvection
Operating Voltage9 - 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 Alternator75 A
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 Weight10.8 Lbs. (4.89 Kg.)

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