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Rockford Fosgate  M1-65B

M1 Series 6.5" 300W Peak Power Handling at 4 Ohms, 2-way Coaxial Marine Speakers

Item #91037

Condition:   Brand New

Product Highlights

  • M1 Series
  • 6.5" Size
  • 300W Peak Power
  • 4 Ohms Impedance
  • 2-way Coaxial Design

  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping.
60 DAYS Price change protection.

$249.99

Reg. Price $349.99  Save $100.00
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  Free 2-Years Warranty Included!
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Rockford Fosgate M1-65B M1 Series 6.5" 300W Peak Power Handling at 4 Ohms, 2-way Coaxial Marine Speakers


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?
  • • (2) 2-way marine speakers
  • • (2) 11" LED power harnesses with 4-pin Deutsch connectors on one end
  • • (12) 1-1/4" Stainless steel Allen head screws
  • • (2) 3mm Allen head bits
  • • (1) 3.5mm Drill bit
  • • (1) Rockford Fosgate contact information
  • • (1) Instruction manual (English/ French/ Spanish/ German/ Italian)
  • Owner's Manual
High-quality Audio Performance

The Rockford Fosgate M1-65B is a 6.5-inch marine-grade coaxial speaker designed to deliver high-quality audio performance in marine environments. It is part of Rockford Fosgate's M1 series, known for its durability and exceptional sound reproduction on boats, yachts, and other watercraft. Built with a rugged and weather-resistant design, the M1-65B is precisely engineered to withstand the harsh conditions of the marine environment.

Polypropylene Cone and Santoprene Surround

Its UV-resistant polypropylene cone and Santoprene surround ensure longevity and provide accurate and detailed sound reproduction, even outdoors. Equipped with a 1-inch balanced dome tweeter, the M1-65B delivers a clear and crisp high-frequency response, allowing for a dynamic and well-balanced sound experience. The integrated crossover network ensures seamless integration between the woofer and tweeter for optimal performance.

Corrosion-resistant Stainless Steel Grille

The M1-65B features a corrosion-resistant stainless steel grille, protecting it while maintaining an attractive appearance. Its sealed motor design and integrated 6dB/octave crossover network provide reliable performance and durability in marine applications.

Marine Audio System With High-quality and Reliable Speakers

If you want to upgrade your marine audio system with high-quality and reliable speakers, the Rockford Fosgate M1-65B is an excellent choice. With their marine-grade construction and impressive sound reproduction, these coaxial speakers will enhance your boating experience with clear and enjoyable audio.

 


Frequently Asked Questions (FAQ)


  • • Why Does My M1-65B Sound Thin After Installation?
    If the speaker produces clear vocals but lacks the expected body, check the mounting surface, polarity, amplifier crossover, and source EQ. The M1-65B is a 6.5-inch 2-way coaxial speaker with a rated response of 38 Hz–22 kHz, so installation and tuning can significantly affect how much mid-bass you hear.
  • • Why Do My M1-65B Speakers Become Harsh at High Volume?
    Harshness can occur when the amplifier is clipping or the gain and EQ are pushed too aggressively. Real-world audio installers commonly report distortion after an amplifier upgrade when gain and crossover settings have not been properly matched.
  • • Why Is One M1-65B Louder Than the Other?
    Unequal output can be caused by a loose speaker terminal, incorrect balance settings, different amplifier-channel gains, or reversed polarity. Swap the left and right connections to see whether the low-output problem follows the speaker or remains on the same channel.
  • • Why Don't the RGB Lights Work Even Though the Speakers Play?
    The M1-65B's Color Optix RGB lighting is separate from the audio connection. Users have specifically discussed needing the appropriate Rockford Fosgate RGB controller and proprietary connections to operate the lighting, while the speakers themselves can still play normally without the lighting system.
  • • Why Does My M1-65B Rattle When the Bass Gets Loud?
    A rattle may come from the mounting ring, grille, screws, surrounding panel, or the installation surface rather than the speaker itself. Tighten the stainless mounting hardware and inspect nearby panels before increasing amplifier output.
  • • Why Does My Amplifier Make the M1-65B Distort Before It Gets Loud Enough?
    The M1-65B is rated at 75W RMS and 300W peak, with a 4-ohm nominal impedance. An amplifier that is poorly matched or incorrectly adjusted can reach clipping before the speaker reaches its useful output level.
  • • Why Does the M1-65B Have Less Bass Than I Expected From a 6.5-Inch Speaker?
    The published 38 Hz lower-frequency figure does not mean every installation will reproduce deep bass equally well. Mounting location, enclosure characteristics, acoustic loading, crossover settings, and cabin or boat conditions can all change perceived low-end performance.
  • • Why Does My Speaker Stop Working After Getting Wet?
    The M1-65B is designed for marine environments, using a UV-stable ASA frame and grille, marine-grade terminals, sealed motor construction, and integrated Deutsch speaker/RGB connections. If audio disappears after water exposure, inspect the connectors and wiring for moisture, corrosion, or a loose connection before blaming the driver.
  • • Why Won't the M1-65B Fit My Existing 6.5-Inch Speaker Opening?
    A “6.5-inch” speaker does not guarantee that every mounting location will accept it. The M1-65B has approximately 2.49 inches of mounting depth, so check the cutout diameter, rear clearance, grille clearance, and mounting depth before installation.
  • • Why Does My M1-65B System Sound Different After Replacing the Factory Speakers?
    Changing speakers can expose limitations in the factory amplifier or reveal an existing EQ profile that was designed around the original drivers. Users upgrading factory systems have reported unexpected changes in bass, treble, and overall loudness, often requiring amplifier gain and crossover adjustments to get the desired balance.

SPECIFICATIONS


  • Diameter : 6.5 Inch
  • Sensitivity : 89.5 dB
  • Impedance : 4 Ohm
  • Frequency Response : 48-20000 Hz
  • Peak Power Handling : 300 Watts
  • Color : Black
  • RMS Power Handling : 75 Watts

FEATURES


Features:

  • Marine Tested: Rockford Fosgate uses industry standard tests (ASTM B117 salt/fog and ASTM G154 UV) to ensure the M1-65B speakers are durable in the difficult marine environment.
  • Tweeters: The 1" balanced dome tweeters are made of LCP (liquid crystal polymer), a high strength/light weight material. The tweeters are bridge mounted, useful in a marine speaker because no opening through the middle of the woofer for the mounting post is needed.
  • LEDs: There are red, green, and blue LEDs in the back of the tweeter casing, to create a glow on the woofer cone. The LEDs can be powered individually, or in any combination you like. Depending on what combination of LED wires is connected, they light red, green, blue, yellow, pink, aqua, or white. A 12 volt power supply is needed to turn the LEDs on and a 1-amp fuse should be added in-line (fuse not included). The LEDs can also be controlled using Rockford Fosgate's LED Controller (item number 575PMXRGB, sold separately). Two LED power wire harnesses are included with 4-pin waterproof Deutsch DT Series connectors that plug into the speaker frames.
  • Speaker Terminals: In addition to standard male quick slide terminals, each speaker also has 2-pin waterproof Deutsch terminals. Speaker wire harnesses with 2-pin waterproof Deutsch DT Series connectors are not included.
  • ICC Crossover: The ICC (Integrated Concealed Crossover) simplifies installation and protects the crossover by concealing it inside the basket, creating a cleaner look and easier installation. The crossover has a 6 dB/octave slope.
  • VAST Surround: The Vertical Attach Surround Technique (VAST) increases a speaker's effective radiating cone area without increasing the size of the basket.
  • Klippel Verified: The Klippel distortion analyzer, a device that uses a laser and sophisticated software to do large-scale analysis of drivers in motion, lets Rockford Fosgate optimize the speaker's motor structure, voice coil alignment, and suspension to yield the best possible performance.
  • Stainless Steel: The mounting hardware is stainless steel to resist corrosion.

 

Specifications:

  • Speaker Type: 2-way Coax
  • Midrange Size (Nominal Diameter): 6.5"
  • Power Handling (RMS)
    • 75 Watts RMS
    • 300 Watts Peak
  • Nominal Impedance (Ohms): 4-Ohm
  • Midrange Mounting Depth:2.49" (63.18 mm)
  • Tweeter Size:1" (25.4 mm)
  • Crossover: High Pass: 6dB/Octave
  • Sensitivity (dB @ 1W/1M): 90
  • Sensitivity (dB @ 2.83V/1M): 92
  • Frequency Response (Hz): 38 Hz - 22 kHz
  • Mounting Hardware: Stainless Steel
  • Grille/Trim Ring Included: Yes
  • Shipping Weight: 4.75 Lbs. (2.16 Kg.)
  • 6-1/2" 2-way marine speakers
  • LED illumination
  • compatible with Rockford Fosgate Color Optix Controller and RF Connect App
  • injection-molded, mineral-filled polypropylene cone
  • integrated crossover
  • 1" balanced dome tweeter built into grille
  • Element Ready design with IP67 rating

 

  • UPC: 780687353704
  • 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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