Rockford Fosgate
600W RMS 4-Channel Marine Amplifier

Rockford Fosgate PM600X4
Rockford Fosgate PM600X4 Rockford Fosgate PM600X4 Rockford Fosgate PM600X4 Rockford Fosgate PM600X4 Rockford Fosgate PM600X4 Rockford Fosgate PM600X4 Rockford Fosgate PM600X4 Rockford Fosgate PM600X4


The PM600X4 is a 600 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 Punch PM600X4 multi-channel amplifier is versatile to power any audio system configuration. In addition to 4-channel stereo mode, you can bridge both channels to create a high power 2-channel amp, or run stereo speakers on the front with subwoofers on the rear in 3-channel mode. The variable HP/LP crossover and built-in Punch EQ allows for precise tuning of Bass frequencies and the Pass-Thru RCA jacks provide flexibility as your system grows and keeping Y-adapters to a minimum.

  • Features C.L.E.A.N. Set-up
  • RCA Pass-thru Outputs
  • High Level Input Capable with Auto Turn-On Circuit
  • On-board Punch EQ with +18dB boost @ 45Hz
  • Optional Remote Punch Level Control (PLC2) Ready (with Input Clip Indicator)
  • 12dB/octave Butterworth Crossover
  • Cast Aluminum Heatsink
  • Muted Turn On
  • Short Circuit Protection
  • Stealth Top Mounted Control Panel
  • Over Current Protection
  • Marine Grade Stainless Steel Hardware
  • Marine Grade Two Part Epoxy Coating on Circuit Boards
  • 2-Year Warranty

CTA-2006 Compliant

Power ratings on Rockford Fosgate amplifiers conform to CTA-2006 industry standards. These guidelines mean your amplifier's output power ratings are REAL POWER numbers, not inflated marketing ratings.

CE Compliant

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


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.

Balanced Differential Inputs

Differential inputs eliminate noise picked up by signal cables.


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

Element Ready™

All components are protected against harsh outdoor elements like Dust, UV, Temperature, Water, Corrosion and Vibration.


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


NOMAD is a "real time" analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances.


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

C.L.E.A.N. Set-Up

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.

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.


600W RMS
75W RMS x 4 @ 4Ω
150W RMS x 4 @ 2Ω
300W RMS x 2 @ 4Ω Bridged
Dynamic Power
129W RMS x 4 @ 4Ω 0° Res
211W RMS x 4 @ 2Ω 0° Res
Frequency Response
20Hz - 20kHz
Input Sensitivity
150 mV - 12 V
68% @ 4Ω
Total Harmonic Distortion
4Ω: <1.0%
2Ω: <1.0%
Signal Input
Hi/Low Level: 2 RCA Pair
Signal Output
Low Level: 1 RCA Pair
Tone Controls
Front Punch EQ2 Bass: 0dB to +18dB @ 45Hz
Front Punch EQ2 Treble: 0dB to +12.5dB @ 12kHz
Rear Punch EQ2 Bass: 0dB to +18dB @ 45Hz
Rear Punch EQ2 Treble: 0dB to +12.5dB @ 12kHz
Function Depends upon LP/AP/HP Switch Position
Crossover Controls
Front/Rear High-Pass (HP): 50Hz-250Hz @ 12dB/octave Butterworth
Front/Rear Low-Pass (LP): 50Hz-250Hz @ 12dB/octave Butterworth
All-Pass: Yes
Remote Control
Optional Punch Level Control (PLC2) Ready
Power Wire Gauge
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
100 A
Average Current Draw
45 A
Max. Current Draw
90 A
Suggested Alternator
75 A
2.38" x 7.76" x 13.28"
6.05 x 19.71 x 33.73 cm
12.8 lbs (5.8 kg)
More Information
Brand Rockford Fosgate
Amplifier Class Class AB
RMS Power 600W RMS