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Home > Electronics > Marine Stereo DVD CD System > Rockford Fosgate Marine Stereo System >
Rockford Fosgate PM600X4 Punch Series 600 Watt 4-Channel Amplifier

Rockford Fosgate PM600X4 Punch Series 600 Watt 4-Channel Amplifier

Availability: Usually ships the next business day

Brand New with Factory Warranty

Use Promotion Code "freeshipping" to receive Free Shipping During Checkout

Rockford Fosgate PM600X4 Punch Series 600 Watt 4-Channel Amplifier
c56361List Price: $US 499.99Our Price: $US 499.99
Extended Warranty: 

600 Watt 4-Channel Amplifier

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.

  • High level input capable with Auto Turn-On circuit
  • RCA pass-thru outputs
  • Features C.L.E.A.N. Set-up
  • Optional remote Punch Level Control (PLC2) ready (w/ input clip indicator)
  • 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
  • 1 Year Standard Warranty

Element Ready - Amps

These amplifiers are protected against Dust, UV, Corrosion, and feature Stainless hardware.

Our Moto-marine amplifiers have not only the capabilities you expect a Rockford Fosgate amp to have, but we have designed them to stand up to the environmental conditions you are likely to subject them to. With corrosion resistant stainless steel hardware and two-part epoxy coated circuit boards, these units are designed with you in mind. Whether on the lake, on the road or in the back woods these amplifiers are ready for an adventure.

Dust - We make sure that displays and motor structures are sealed up tight so they look as clear as possible and perform day in and day out no matter how many times you hit the trails.
UV Inhibitor Materials - Centrex and ASA plastic materials are used for their UV radiation resistance and components are tested in accordance with ASTM D4329 testing and certification procedures.
Corrosion Protection (Electronics) – Two part epoxy coated PCB boards prevent corrosion of critical components due to exposure in moisture rich environments.
Stainless Hardware – Stainless hardware is used due to its natural resistance to corrosion and rusting. This ensures that electrical connections will not degrade over time due to exposure to the elements.


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.

CE Compliant

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

The ce mark is the official marking required by the European Community for all Electrical and Electronic equipment (and others) that will be sold, or put into service for the first time, anywhere in the European community.

It proves to the authorities, but also to the buyer -or user- that this product fulfills all essential safety and environmental requirements as they are defined in the so-called European Directives.

The ce marking directive (93/68/EEC) was adopted on 07-22-1993 and updated as 768/2008 EC on 13-8-2008.

The directive gives a detailed description of the initials CE and any other marks specific to a particular directive and the many ways conformity may be acquired.

In return for fulfilling the CE marking requirements, the manufacturer or its agent gets the permission to cover the entire European market using only one approval procedure for the topics covered in the applicable directives.

No member state of the European Community can refuse trade of any (electronic or electrical) product that has been CE marked (unless fraud suspected). For some products however, national regulations exist, as long as the requirements covered in these national regulations are not covered by a pan-European Directive.


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.

An award winning studio quality circuit borrowed from the pro audio company Hafler. TRANS-ana is a sound quality circuit that is a standard in the recording industry that simplifies the signal path of the amplifier, allowing the signal to travel through the amplifier at a low voltage. The result: Greater reliability, cleaner performance and exceptional musicality, speed, and durability.

  • Simplifies signal path
  • Greater reliability
  • Exceptional sound quality

Balanced Differential Inputs

Differential inputs eliminate noise picked up by signal cables.

Differential input circuitry measures the voltage of both the (+) and (-) input signal. The circuitry subtracts the voltage common to both conductors (noise) resulting in only the clean signal. This allows only clean signal to enter the amplifier


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.

DSM - An industry-leading manufacturing process, DSM utilizes high-speed robotics, high-quality 1% tight-tolerance parts and large board traces. The discrete components are laser etched to meet a particular value and a very low tolerance. This lower tolerance improves the efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature. These superior components are used by aerospace, automotive, and cellular manufacturers.


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

MEHSA3 (Maximum Efficiency Heat Sink Application - gen. 3) is a proprietary process that yields up to five times better heat transfer than traditional FET mounting techniques, using the exact same components. A multi-layer insulated metal substrate operating with minimal thermal resistance spreads heat both downward & outward to quickly dissipate heat from each device across the heatsink. This process combined with our optimized heatsink designs, DSM (Discrete Surface Mount) technology and MOSFET devices, allows Rockford Fosgate to squeeze more watts per cubic inch from every output device as well as provide consistent thermal stability. The 3rd generation creates a dielectric layer between the ceramic topside and the aluminum base that retains all of the electrical isolation and capacitive coupling of the original MEHSA material increasing it's thermal conductivity. The higher power handling results in a 20% reduction in thermal impedance


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

This circuitry deals with the output stage protection in a Rockford Fosgate amplifier. You see, we at Rockford Fosgate think a good protection circuit is one that keeps your amp from going up in flames when the speaker wires touch together at full power, but won't shut down if the impedance of the load happens to dive when you are hammering your woofers.

The NOMAD circuit accomplishes just that. It's a totally new and very high tech method of dealing with device current and voltage parameters, without being affected by other factors such as heat. Our approach to "real time" protection is one that uses a mathematical transformation which eliminates the problems encountered with trying to do real time multiplication of instantaneous device voltage and current.

Essentially an analog computer calculates at each instant, the maximum allowable level of safe current for each output device, based on their instantaneous voltage drop. This allows the protection to be much more precise than ever before, and ensures reliability.

Rockford Fosgate Avatar

These Avatars are a personal signature from the Rockford Fosgate team member who designed and engineered this fanatic product. This statement illustrates our commitment to being Designed and Engineered in the U.S.A.

[av• uh•tahr -noun]
1. an embodiment or personification, as of a principle, attitude, or view of life
2. a graphical image that represents a person
3. a symbol of ownership

For every Rockford Fosgate product involved in our New Product Development cycle, team members have their Rockford Fosgate Avatar placed on the pc board. This avatar is their way of putting their personal signature on every piece produced to signify "I have done everything possible to ensure our customer receives the best possible product we could develop".

Rockford Fosgate takes pride in knowing that our products are designed and engineered by Rockford Fosgate Fanatics in Tempe, AZ, USA. This is just a part of what makes a Rockford Fosgate customer a Fanatic for Life.

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

U.S. Patent 8712066

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

Time and sophisticated test equipment have been replaced, with Rockford’s integrated level setting technology called CLEAN (Calibrated Level Eliminates Audible Noise). Using simple LED indicators to identify both signal clipping from the audio source and the output level clipping to the speakers. This precise level set-up eliminates speaker damaging distortion

CEA-2006 Compliant: CEA-2006 Power Rating
75W x 4 @ 4Ω
≤1.0% THD+N
Number of Channels: 4
Rated Power
(RMS Continuous Power):
75 Watts x 4 @ 4-Ohm
150 Watts x 4 @ 2-Ohm
300 Watts x 2 @ 4-Ohm Bridged
Total Power
(Sum of Rated Power):
600 Watts
Dynamic Power
129 Watts x 4 @ 4-Ohms 0° Res
211 Watts x 4 @ 2-Ohms 0° Res
Bridgeable: Yes
Frequency Response: 20Hz to 20kHz +/- 1.0dB
Efficiency (average): 68% @ 4-Ohm
Total Harmonic Distortion (THD+Noise): 4-Ohm: <1.0%
2-Ohm: <1.0%
Crossover Controls: Front/Rear High-Pass (HP): 50Hz-250Hz @ 12dB/octave Butterworth
Front/Rear Low-Pass (HP): 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 +12.5dB @ 12kHz
Rear Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or
Rear Punch EQ2 Treble: 0dB to +12.5dB @ 12kHz
Function depends upon LP/AP/HP switch position
Input Sensitivity: 150 mV - 12 V
Signal Input: Hi/Low level: 2 RCA pair
Signal Output: Low level: 1 RCA pair
Power Input Connector: Captive C-Clamp
Power Wire Gauge: 4 AWG
Speaker Output Connector: Captive C-Clamp
Speaker Wire Gauge: 8 AWG to 18 AWG
Heat Sink Type: Cast aluminum
Cooling: Convection
Remote Controls: Optional Punch Level Control (PLC2) Ready
Visual Indicators: Power/Protect/Thermal LED
Power/Protect/Thermal LED
Input Clip LED
Circuit Topology Class: Class-A/B
Operating Voltage: 9 - 16 VDC
Recommended Fuse
(not included):
100 A
Max. Current Draw (13.8V Sinewave): 90 A
Average Current Draw (13.8V Music): 45 A
Suggested Alternator: 75 A
Shipping Weight: 12.8 Lbs. (5.80 Kg.)
Dimensions (HxWxL): 2.38 x 7.76 x 13.28 (in)
6.05 x 19.71 x 33.73 (cm)
Dimensional Diagram:



**The price is subject to change at anytime without any notice.  We are not responsible for any typographical errors.  Any products can be cancelled from sale at any time.

** All Products sold here are Brand New unless specified Otherwise and come with Full Manufacturer's Warranty


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