





Rockford Fosgate M2-300X4
M2 Series 300W 4-Channel Marine Amplifier
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The Rockford Fosgate M2-300X4 4-channel marine amplifier delivers clear, powerful sound and rugged marine-grade durability for your boat’s audio system. Engineered to handle harsh marine environments, this amplifier provides high-output audio performance for full-range speakers or subwoofer setups, ensuring your music is immersive whether cruising, anchored, or docked.
Key Features | Details |
---|---|
4-Channel Marine Amplifier | Delivers up to 300 watts across four channels for full-range audio |
Compact, Weather-Resistant Design | Protects against moisture, salt, and UV exposure |
Flexible Load Compatibility | Supports 4, 2, and 1-ohm speaker setups |
Optimized Audio Tuning | Variable high-pass and low-pass crossovers (50–250 Hz) |
High Efficiency | Class-D design runs cool even under heavy load |
Specification | Details |
---|---|
Power Output | 75 watts x 4 @ 4 ohms, 100 watts x 4 @ 2 ohms, 150 watts x 4 @ 1 ohm |
Total Power Output | 300 watts |
Frequency Response | 20 Hz – 20 kHz |
High-Pass/Low-Pass Crossover | Variable, 50 Hz – 250 Hz |
Dimensions | 8.1" x 5.3" x 1.6" |
Weather-Resistant | Yes, with corrosion-resistant terminals |
What's in the Box
- Rockford Fosgate M2-300X4 4-Channel Marine Amplifier
- Mounting Hardware
- User Manual
- Warranty Information

FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.