Rockford Fosgate M2-300X4 300-Watt 4-Channel Element Ready Marine & Motorcycle Amplifier

Overview

Right in the sweet spot.

The Rockford Fosgate M2-300X4 is a compact 4-channel amplifier designed for marine and outdoor audio systems. It delivers clean, reliable power in a small footprint without overcomplicating the build.

What It Is

A mid-level 4-channel amp built for marine and powersports systems.

• 300 watts total output
• Full-range Class-D design
• Element Ready™ construction for harsh environments

Perfect for powering full speaker systems on boats, UTVs, and other outdoor applications.

Performance

Clean, usable power that makes a real difference.

• 50W x 4 @ 4Ω
• 75W x 4 @ 2Ω
• 150W x 2 bridged @ 4Ω

Where It Fits

This is your “just right” amp.

• Great for 4-speaker marine systems
• Perfect for small-to-mid size audio builds
• Can be bridged for flexible system design

Smart Features

Built for straightforward installs and tuning.

• C.L.E.A.N. clip detection for easy setup
• High-level & low-level inputs
• Variable high-pass / low-pass crossovers
• Works with factory or aftermarket sources

Built for the Elements

Made to live outside.

• Element Ready™ design
• UV-stable heatsink
• Marine-grade terminals
• Conformal-coated circuit board for moisture and corrosion resistance

What’s Included

• M2-300X4 Amplifier
• Mounting Hardware

Specifications

Power Output:

• 300 Watts RMS Total

Channels:

• 4-Channel

Power Ratings:

• 50W x 4 @ 4Ω
• 75W x 4 @ 2Ω
• 150W x 2 Bridged

Frequency Response:

• 20 Hz – 20 kHz

Technology:

• Class-D

Quick Questions

Q: What is this best used for?
A: Full-range speaker systems in marine or outdoor environments.

Q: Can it run a subwoofer?
A: Yes, when bridged—but it’s primarily designed for speakers.

Q: Is this a high-output amp?
A: It’s more about clean, efficient power than extreme output.

Note

• Designed for marine and outdoor use
• Best suited for small-to-mid size systems