The PM400X4 is a 400 Watt 4-channel amplifier with high dynamic power using Class-a/b technology and a conformal coated pc board designed for motorsport and marine applications.
The PM400X4 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 PM400X4 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
- Marine grade two part epoxy coating on circuit boards
- Marine grade stainless steel hardware
- 2-Year Warranty
Element Ready™ - Amps
These amplifiers are protected against Dust, UV, Corrosion, and feature Stainless hardware.
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.
C.L.E.A.N. (Calibrated Level Eliminates Audible Noise) is a patented circuit with in/out clip LEDs to help match a source to amp and optimize output.
|Recommended Fuse (not included)||60 A|
|Max. Current Draw (13.8V Sinewave)||60 A|
|Average Current Draw (13.8V Music)||30 A|
|Total Harmonic Distortion (THD+Noise)||4-Ohm: <1.0% |
|Efficiency (average)||67% @ 4-Ohm|
|Dynamic Power (PVC/PowerCube®)||82 Watts x 4 @ 4-Ohm |
137 Watts x 4 @ 2-Ohm
266 Watts x 2 @ 4-Ohm Bridged
|Shipping Weight||10.8 Lbs. (4.89 Kg.)|
|Operating Voltage||9 - 16 VDC|
|Number of Channels||4|
|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
|Suggested Alternator||75 A|
|Input Sensitivity||150 mV - 12 V|
|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|
|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
|Signal Input||Hi/Low level: 2 RCA pair|
|Speaker Wire Gauge||8 AWG to 18 AWG|
|Speaker Output Connector||Captive C-Clamp|
|Power Wire Gauge||8 AWG to 4 AWG|
|Power Input Connector||Captive C-Clamp|
|Heat Sink Type||Cast aluminum|
|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
|Circuit Topology Class||Class A/B|
|Frequency Response||20Hz to 20kHz +/- 1.0dB|
|Dimensions (H x W x D)||2.38 x 7.76 x 11.03 (in) |
6.05 x 19.71 x 28.02 (cm)