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.
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
This product fulfills all essential safety and environmental requirements as defined in the European Directives (768/2008 EC).
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 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.
Dynamic Thermal Management evenly distributes excess heat across entire amplifier heatsink.
DSM utilize 1% tight-tolerances improving efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature.
MEHSA3 reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life span.
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.
Patented circuit with in/out clip LEDs to help match a source to amp and optimize output.
|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
|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% |
|Signal Input||Hi/Low level: 2 RCA pair|
|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
|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|
|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|
|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.)|