Mobile Electronics Power Accessories

Rockford Fosgate

600-Watt 4-Channel Marine Amplifier

$649.99

SKU: PM600X4

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Rockford Fosgate PM600X4 is a 600-watt, 4-channel marine amplifier. It features Class-A/B technology and a conformal coated PCB, making it suitable for marine and motorsport applications. This amplifier offers high dynamic power and includes features like variable crossovers, built-in Punch EQ for bass and treble tuning, and Pass-Thru RCA jacks for system expansion.

Key specifications include 75 watts RMS x 4 at 4 ohms or 150 watts RMS x 4 at 2 ohms, with a bridgeable option for 300 watts RMS x 2 at 4 ohms. It has a frequency response of 20Hz to 20kHz and supports both high and low-level inputs. The amplifier is designed with a cast aluminum heatsink for efficient convection cooling and features visual indicators for power, protect, thermal, and clip status. It requires a 4 AWG power wire gauge and can accommodate speaker wire gauges from 8 to 18 AWG. The unit operates on a 9-16 VDC range and comes with a 2-year warranty.
Show original supplier description
The Rockford Fosgate PM600X4 is a versatile 600-watt, 4-channel marine amplifier engineered for durability and high-performance audio in demanding environments. This amplifier provides flexible configuration options, including standard 4-channel stereo mode, a bridged 2-channel mode for higher power output to subwoofers (300 Watts x 2 @ 4-Ohm), or a 3-channel setup for front speakers and rear subwoofers. Its integrated Punch EQ allows for precise +18dB boost at 45Hz for bass and +12.5dB at 12kHz for treble, while the variable 12dB/octave Butterworth crossovers (HP/LP/AP) ensure optimal frequency management. Pass-Thru RCA outputs simplify system expansion by minimizing the need for Y-adapters. Built to Rockford Fosgate's high standards, the PM600X4 meets CTA-2006 compliance for real power ratings, delivering 75 Watts RMS x 4 at 4 ohms or 150 Watts RMS x 4 at 2 ohms. It features a robust cast aluminum heatsink for effective convection cooling, C.L.E.A.N. (Calibrated Level Eliminates Audible Noise) technology with input and output clip LEDs for accurate setup, and balanced differential inputs to reject noise. Protection features include short circuit, over-current, and thermal protection, managed by the NOMAD system. Designed for marine and motorsport applications, the PM600X4 is Element Ready™ certified, meaning all components are protected against dust, UV, temperature, water, corrosion, and vibration. It requires a 4 AWG power wire and 8-18 AWG speaker wire. The amplifier operates within a 9-16 VDC range and comes with a 2-year warranty. An optional remote Punch Level Control (PLC2) is available.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRockford Fosgate
Part NumberPM600X4
CategoryMobile Electronics

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy