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Rockford Fosgate

Rockford Fosgate Marine amplifier M5-800X4

Rockford Fosgate Marine amplifier M5-800X4

Regular price $689.99 USD
Regular price Sale price $689.99 USD
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Mei from Wide Open Sound

Wide Open Sound · Curated gear

Rockford Fosgate Marine amplifier M5-800X4

WOS Pick What this amp does in 10 seconds — expand for full specs.

  • BrandRockford Fosgate
  • SKUM5-800X4
  • Channels4
  • ClassClass A
Mei says

"Match this amp to your speakers and sub. Wrong power or wiring = weak system — do it once, do it right."

The stuff you'll actually notice
  • 4-channel platform.
Product description

Product info:marine 4-channel amplifier100 watts RMS CTA-2006 x 4 at 2 or 4 ohmsbridged power: 200 watts RMS CTA-2006 x 2 at 4 ohmsmax Dynamic Power rating: 200 watts x 4 at 2 ohmsClass AD amplifier designfrequency response: 10-50,000 Hzvariable low-pass and high-pass filters (50-250 Hz, 12 dB/octave)variable bass boost (0-18 dB at 45 Hz)marine features:Element Ready™ chassis and conformal-coated PC boardsIPX6 water intrusion ratingheavy-duty molded connectors protect wiring from water and dirtPreset button for instant tuning in Rockford Fosgate UTV audio packagesMore Info:C.L.E.A.N. gain setup system includes clip lightsauto remote turn-onpreamp and speaker-level inputspreamp outputswiring, fuse, and hardware not included with amplifier8-gauge power and ground leads and a 100-amp fuse recommendeddimensions: 12"W (includes wiring) x 1-13/16"H x 4-1/4"Dwarranty: 2 years60-day returnsMFR # M5-800X4Item # 575M58004 Read more

Rockford Fosgate M5-800X4 M5 Series 4-Channel 100W RMS x 4 at 2-Ohms, Class-AD Marine/Powersports Car Amplifier

We are a Rockford Fosgate authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?

• 4-Channel Class-AD Marine/Powersports Amplifier
• 11" Power/ground/turn-on & speaker output harness (installed on amp)
• 11" Input harness (installed on amp)
• (2) 14" RCA-to-Molex input adapters
• Power/ground/turn-on adapter plug
• (2) 7.5" speaker output harnesses
• 3mm Allen key
• Performance certificate
• Contact information
• Owner's Manual

 

 

Powerful Performance and Built for the Trail

Play longer with extended runtime and seamless integration, enjoy instant sound optimization with PRESET tuning, and experience rugged Element Ready™ protection that thrives in mud, water, and dust. With Constant Power™ delivering up to 25% more output, RATS-certified reliability, and C.L.E.A.N. setup for precise tuning, this system gives you unmatched power, durability, and sound quality—no matter where the ride takes you.

Precision Power and Engineered for Excellence

Enjoy high-efficiency performance with Surface-Mount Precision for clean, accurate sound, while Class-AD technology delivers more power with less current draw. Designed for seamless integration with OEM or aftermarket systems, this amp features top-mounted Element Ready™ controls under a protective smoked lens, plus rugged MESHA 4 Armor to reduce heat, minimize distortion, and ensure long-lasting reliability on every adventure.

Quiet Power and Built for Extreme Conditions

Experience crystal-clear sound with noise-free performance thanks to chassis isolation and balanced differential inputs. Smart Remote-Out provides flexible system control, while low impedance stability guarantees consistent output under heavy loads. The focused-mass heat sink targets hot spots for superior cooling, keeping your system performing at its peak on every ride.







SPECIFICATIONS







Maximum Power : 800 Watts

Low Frequency Response : 50-250 Hz

High Frequency Response : 50-250 Hz

Number of Channels : 4

Frequency Response : 10-50000 Hz

Built In Crossovers : Yes

RMS Power Output : 4x100 Watts

Amplifier Class : AD

Fuse Rating : 100 A





FEATURES




Features:

Play All Day: Designed for easy integration and extended playtime, keeping your music going longer.
Preset Perfection: PRESET feature eliminates manual tuning when paired with Rockford Fosgate UTV audio kits.
Element Ready™ Protection: Integrated harness and panel seals built for off-road durability.
Constant Power™ Advantage: Patented technology delivers up to 25% more power across varying impedance loads.
RATS Certified: Rockford Automated Testing System ensures top-tier quality and performance.
C.L.E.A.N. Setup: Input/output clip detection with indicator LEDs for precise tuning.
Surface-Mount Precision: Discrete SMD design with 1% tolerances for high efficiency and minimal cross-talk.
Class-AD Power: Proprietary design produces more power with less current draw.
Seamless Integration: Compatible with both OEM and aftermarket radio inputs.
Top-Mounted Controls: Element Ready™ smoked lens cover protects the control panel.
MESHA 4 Armor: Reduces MOSFET temperatures, lowers distortion, and extends device life.
Noise-Free Performance: Chassis isolation minimizes vehicle noise interference.
Smart Remote-Out: Activates when using high-level inputs for flexible system control.
Balanced Differential Inputs: Eliminates noise caused by signal cables.
Low Impedance Stability: Ensures consistent performance under demanding loads.
Focused Mass Heat Sink: Strategically placed aluminum around hot spots for efficient cooling.

 
Specifications:

100W x 4 RMS Power
125W x 4 Peak Power
100W x 4 @ 2Ω
200W x 2 Bridged
Frequency Response: 20Hz – 20kHz
THD: 0.25%
Signal-to-Noise: 105 dB
Low-Pass: 50–250Hz (12 dB/octave)
High-Pass: 50–250Hz (12 dB/octave)
Bass Boost: 0–18 dB @ 45Hz
Class A/D Amplifier
Size: 1-13/16" H x 12" W x 4-1/4" D
Fan Cooled: No
Speaker-Level Inputs: Yes
Preamp Outputs: No
Fuse Rating: 100A
Min Impedance: 2Ω (Unbridged), 4Ω (Bridged)


UPC: 780687357962
Weight: 6
Authorized Internet Dealer




Warranty: 2 Year(s) Warranty.This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.


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Power breakdown
Inputs, filters & control
Build, wiring & install
Protection & performance
Full specifications
Amplifier
Amp Class Class A
Amp Channels 4
Power ratings
Inputs & filters
Wiring
Weather / environment
Basic Marine Grade Marine Grade
Support
Support & warranty

Need help choosing or installing?

We build indestructible, IP-rated systems for marine, motorcycle, UTV, and automotive. If you want a matched setup, we’ll guide you to the right gear the first time.