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Rockford Fosgate P400X4

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RRP: $729.00
Our Price: $699.00

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Punch 400 Watt 4-Channel Amplifier


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

CEA-2006 Guidelines CEA-2006 Power Rating
50W x 4 @ 4OHM
1.0% THD+N
Number of Channels: 4
Rated Power
(RMS Continuous Power): 50 Watts x 4 @ 4-Ohm
100 Watts x 4 @ 2-Ohm
200 Watts x 2 @ 4-Ohm Bridged
Total Power
(Sum of Rated Power): 400 Watts
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
Efficiency (average): 67% @ 4-Ohm
Total Harmonic Distortion (THD+Noise): 4-Ohm: <1.0%
2-Ohm: <1.0%
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
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
Input Sensitivity: 150 mV - 12 V
Signal Input: Hi / Low level: 2 RCA pair
Power Input Connector: Captive C-Clamp
Power Wire Gauge: 8 AWG to 4 AWG
Speaker Output Connector: Captive C-Clamp
Speaker Wire Gauge: 8 AWG to 18 AWG
Heat Sink Type: Cast aluminium
Cooling: Convection
Remote Controls: -
Visual Indicators: Power / Protect / Thermal LED
Input Clip LED
Output Clip LED
Circuit Topology Class: Class-A / B
Operating Voltage: 9 - 16 VDC
Recommended Fuse
(not included): 60 A
Max. Current Draw (13.8V Sinewave): 60 A
Average Current Draw (13.8V Music): 30 A
Suggested Alternator: 75 A
Shipping Weight: 10.8 Lbs. (4.89 Kg.)
Dimensions (H x W x D): 2.38 x 7.76 x 11.03 (in)
6.05 x 19.71 x 28.02 (cm)
Dimensional Diagram:

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