SKU: 97712046180

Rockford Fosgate M5-800X4 800 Watt 4 Channel Marine Amplifier

Sale price$310.50 Regular price$345.00
Save 10%

Pay in installments of $86.25 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 15 - Aug 20

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Rockford Fosgate M5-800X4 800 Watt 4 Channel Marine AmplifierSerious marine sound, made simple. The M5 amplifiers feature the next level of Element Ready design from Rockford Fosgate thats built as rugged as the outdoor environment its used in. Rockford Fosgate amplifiers are known world wide for producing more power than their ratings suggest. The M5 amplifiers are the first series based on new industry standard Dynamic Power ratings, bringing their conservative ratings to the forefront. Engineered from the

Serious marine sound, made simple. The M5 amplifiers feature the next level of Element Ready™ design from Rockford Fosgate that’s built as rugged as the outdoor environment it’s used in.

Rockford Fosgate amplifiers are known world-wide for producing more power than their ratings suggest. The M5 amplifiers are the first series based on new industry standard Dynamic Power ratings, bringing their conservative ratings to the forefront. Engineered from the ground up and purpose-built to deliver more output where you actually hear it, this is real dynamic power that performs not only on paper, but performance heard through the musical experience. You’ll see two amplifier power ratings, the traditional Continuous Power output, and the new Dynamic Power output, both tested in accordance with the CTA-2006 specification. Consider Continuous Power as wattage developed on the test bench for comparison against other amplifiers in the same class, and Dynamic Power as real-world wattage when connected to a speaker load, listening to music. Either way you look at it, Rockford Fosgate is proving – once again – these amplifiers are powerful enough to drive any speaker or subwoofer you throw at them.

Key Points

  • Marine 4-channel amplifier
    • 100 watts RMS CTA-2006 x 4 at 2 or 4 ohms
    • Bridged power: 200 watts RMS CTA-2006 x 2 at 4 ohms
    • Max Dynamic Power rating: 200 watts x 4 at 2 ohms
  • Class AD amplifier design
  • Frequency response: 10-50,000 Hz
  • Variable 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 boards
    • IPX6 water intrusion rating
    • Heavy-duty molded connectors protect wiring from water and dirt
    • Preset button for instant tuning in Rockford Fosgate UTV audio packages

Features

  • Element Ready™ design with integrated harness & panel seals
  • PRESET removes the need to set-up and tune the amp when used with Rockford Fosgate UTV audio kits
  • Constant Power provides instantaneous delivery of output over varying impedance loads
  • Play all day, easy to integrate, and keep music playing for extended lengths of time
  • Clean input/output clip detection and indicator LEDs
  • Focused mass heat sink allows critical aluminum material to be located around hottest internal devices
  • OEM and aftermarket radio integration inputs
  • Top mounted control panel with Element Ready™ smoked lens cover
  • Quality & Performance tested using proprietary RATS (Rockford Automated Testing System)
  • Low Impedance Stability
  • Proprietary Class-AD technology allows amplifier to produce more power with less current draw
  • Discrete Surface Mount technology with 1% tight-tolerances for high efficiency & reduced cross-talk
  • Mesha 4 reduces MOSFET temps, lowers distortion, increases durability and prolongs device life span
  • Chassis Isolation from mounting points greatly reduces possible introduction of vehicle noise
  • Balanced Differential Inputs eliminates noise picked up by signal cables
  • Remote-Out feature when using high level inputs
  • 2-Year Warranty

Specifications

Performance

RMS Power Output (Watts x Channels) 100 x 4
Frequency Response at Rated RMS Power 20Hz-20k Hz
THD at Rated RMS Power 0.25%
Signal to Noise Ratio 105 dB
Input Voltage N/A
Peak Power Output (Watts x Channels) 125 x 4
Power at 2 Ohms (Watts x Channels) 100 x 4
Bridged Power (Watts x Channels) 200 x 2
Minimum Impedance Bridged 4
Minimum Impedance Unbridged 2

 

Features

Amplifier Class A/D
Low-Pass Crossover Frequency 50-250Hz
Low-Pass Slope (dB/octave) 12 dB/octave
High-Pass Crossover Frequency 50-250Hz
High-Pass Slope (dB/octave) 12 dB/octave
Bass Boost 0-18dB
Bass Boost Frequency 45Hz
Fan Cooled No
Fuse Rating 100
Speaker Level Inputs Yes
Preamp Outputs No
Height (inches) 1/13/2016
Width (inches) 12
Depth (inches) 4/1/2004
Parts Warranty 2 Years
Labor Warranty 2 Years
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 97712046180

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 7 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
T
Verified Purchase
Tischina S.
Port Orchard, US
★★★★★ 5
Excellent quality, just like the picture
Size: 10.5, Color: White/White
Looks just like the picture. My bf is a size 10.5 and we got just that and its a perfect fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
M
Verified Purchase
Mamase
Draper, US
★★★★★ 5
Nice shoes
Size: 12, Color: British Tan/Ivory
Nice, good looking shoes. My husband says that they are very comfortable. I would recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
R
Verified Purchase
Rawle Bhaggan
Birmingham, US
★★★★★ 5
Comfort Meets Performance — Nike Men’s Journey Run Road Running Shoes
Size: 10.5, Color: Black/Summit White/Anthracite/Cyber
I picked up the Nike Men’s Journey Run Road Running Shoes on a whim, and they turned out to be a great surprise. From the first wear, they felt comfortable and lightweight, with cushioning that makes walking and running on pavement much easier on the feet. They don’t feel overly stiff or bulky, which I appreciate for everyday use. What I like most is how versatile they are. I’ve worn them for short runs, gym workouts, and even casual outings, and they’ve held up well in all situations. The fit is true to size, and the upper feels breathable enough to stay comfortable throughout the day. They also have a clean, simple look that pairs well with both athletic and casual clothes. Traction has been solid on roads and sidewalks, and I haven’t noticed any slipping, even on slightly wet surfaces. While they may not be designed for competitive racing, they’re perfect for daily training, walking, or anyone looking for a reliable, comfortable running shoe. Overall, the Nike Journey Run shoes offer good comfort, dependable performance, and everyday style. A solid choice if you want a no-nonsense running shoe that you can wear beyond just your workouts.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
D
Verified Purchase
Dayan
Lexington, US
★★★★★ 5
Versatile sneakers. The upper makes the difference.
Size: 11, Color: Black/Smoke Grey/Medium Ash
Very good quality shoes for this price. My impressions: 1. The Flyknit upper feels very soft and comfortable. I don't get the rough, scratchy feel of some lower-quality options. It also disperses heat very well. 2. The midsole is firm, but not overly hard. I find it well-balanced, as it has good shock absorption while still being soft enough to cushion the soles of my feet. 3. They're versatile. For me, especially the black ones with the dark gray sole, they work for casual wear, going to the gym, walking, and short, light runs. 4. I consider them very decent shoes for walking and short runs under 5k.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 9, 2025
K
Verified Purchase
Kelly L. MacDonald
Draper, US
★★★★★ 5
Offer lots of support and traction- perfect gym shoes
So comfortable- they offer a lot of support and I can tell they will last for a long time (and I’m hard on my gym shoes!). I’m actually a female but I sized down and they fit perfectly. I found them on sale and definitely recommend them as they are well worth the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2026

recommand products