




Rockford Fosgate M5-800X4
M5 Series 800W Marine 4-Channel Amplifier
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Elevate Your Marine Audio with the Rockford Fosgate M5-800X4: 800-Watt 4-Channel Marine Amplifier
The Rockford Fosgate M5-800X4 4-channel marine amplifier is engineered to deliver robust, high-quality sound across your boat’s entire audio system. Designed with Rockford Fosgate’s legendary durability and performance, this amplifier is built to withstand harsh marine environments, providing clear and powerful audio whether you're cruising open waters or anchored in a quiet bay. With 800 watts of total power distributed across four channels, the M5-800X4 offers the versatility and power needed to drive your speakers, ensuring an exceptional marine audio experience on every voyage.
Experience Superior Sound Quality with the Rockford Fosgate M5-800X4
The M5-800X4 amplifier is crafted to provide crisp, clear sound that brings your music to life on the water. With 800 watts of power distributed across four channels, this amplifier ensures that your speakers deliver full-range audio—from deep bass to sharp highs. Whether you’re enjoying soft melodies or bass-heavy tracks, the M5-800X4 delivers the clarity and impact that enhances every aspect of your marine audio system.
Durable Marine-Grade Construction
Built to endure the challenges of marine environments, the M5-800X4 features a weather-resistant design protected against moisture, salt, and UV rays, ensuring long-lasting performance in harsh conditions. Its robust construction guarantees consistent, high-quality sound throughout your journeys on the water.
High-Efficiency Class-D Technology
The M5-800X4 utilizes advanced Class-D technology to deliver powerful sound while maintaining high efficiency. This design ensures the amplifier runs cool during extended use and minimizes energy consumption—ideal for marine applications where power efficiency is crucial. Its compact size allows flexible installation, even in tight spaces.
Optimized Audio Performance Across All Channels
Engineered for optimal audio performance, the M5-800X4 features variable high-pass and low-pass crossovers that allow you to fine-tune your sound system for the best possible experience. Whether you want to enhance your highs or ensure clean, distortion-free sound, this amplifier provides the control and flexibility needed to maximize your marine audio system.
Key Features:
- 4-Channel Marine Amplifier: Delivers 800 watts of powerful, clear audio across four channels.
- High-Efficiency Class-D Technology: Ensures powerful sound with minimal energy consumption and heat generation.
- Compact and Weather-Resistant Design: Built to withstand moisture, salt, and UV rays.
- Optimized Audio Performance: Variable high-pass and low-pass crossovers for precise sound tuning.
- Durable Marine-Grade Construction: Long-lasting performance in tough marine conditions.
Why Choose the Rockford Fosgate M5-800X4?
The M5-800X4 is perfect for boat owners seeking powerful, clear sound and reliable performance. Its compact, weather-resistant design combined with efficient Class-D technology makes it ideal for marine environments. Whether cruising at high speeds or anchored in a quiet cove, the M5-800X4 delivers the audio performance needed to make your time on the water unforgettable.
Upgrade Your Marine Audio with the Rockford Fosgate M5-800X4
Ready to amplify your boat’s sound system with powerful, clear audio? Order the Rockford Fosgate M5-800X4 4-channel marine amplifier today and experience superior sound quality on every voyage.
Specifications:
- Power Output: 100 watts x 4 @ 4 ohms, 200 watts x 4 @ 2 ohms
- Total Power Output: 800 watts
- Frequency Response: 20 Hz – 20 kHz
- Signal-to-Noise Ratio: >85 dB
- High-Pass/Low-Pass Crossovers: Variable, 50 Hz – 250 Hz
- Bass Boost: 0-18 dB @ 45 Hz
- Dimensions: 13.3" x 7.8" x 2.0"
- Weather-Resistant: Yes, with corrosion-resistant connectors
FAQs
What is the power output of the Rockford Fosgate M5-800X4 amplifier?
The amplifier delivers 100 watts per channel at 4 ohms and 200 watts per channel at 2 ohms, totaling 800 watts.
Is the M5-800X4 amplifier weather-resistant?
Yes, it features a weather-resistant design with protection against moisture, salt, and UV rays for long-lasting marine performance.
How efficient is the M5-800X4 amplifier?
It uses advanced Class-D technology for powerful sound output with minimal energy use and heat generation.
Can I fine-tune the sound with the M5-800X4 amplifier?
Yes, it includes variable high-pass and low-pass crossovers to optimize your audio system.
How easy is it to install the Rockford Fosgate M5-800X4 amplifier?
Its compact size allows easy installation even in tight spaces, fitting a variety of boat sizes.
Why should I choose the Rockford Fosgate M5-800X4 amplifier for my boat?
It offers powerful, clear audio, durable marine-grade construction, and efficient performance, making it an excellent choice for marine audio enhancement.
Upgrade Your Audio Experience on the Water!
Don’t miss the chance to elevate your boat’s sound system with powerful, clear audio. Order the Rockford Fosgate M5-800X4 now and enjoy exceptional sound on every voyage.

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.