Rockford Fosgate M2D4-10S M2 Series 10" 400W RMS (1600W Peak Power Handling) 4 Ohms Dual Voice Coils Marine Subwoofer - White
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What's Inside?
- • 10" M2 Series Marine Subwoofer
- • Owner's Manual
Built for Real Marine Abuse, Not Just Light Weather
The Rockford Fosgate M2D4-10S is made for environments where most subwoofers would struggle to survive. It is tested using ASTM B117 and D4329 salt fog standards along with ASTM G154 UV exposure testing, so it is built to handle constant sun, salt, and moisture without breaking down. Whether it is on a boat or an open-air setup, this sub is designed to stay reliable and keep performing strong in real marine conditions over the long run.
Flexible Power Setup With Free-Air Simplicity
This subwoofer gives you the freedom to build your system your way. The selectable dual impedance configuration lets you switch between 2 ohms and 8 ohms by rewiring the dual 4 ohm voice coils in series or parallel, while still delivering a solid 400W RMS and 1600W peak power output. It is also optimized for infinite-baffle installation, so you can mount it in open-air spaces without needing a dedicated enclosure while still getting deep and controlled bass response.
Clean Bass, Smart Engineering, and Custom Marine Style
The M2D4-10S is not just about durability, it is built for performance and customization too. The RGB lighting system behind the grille lets you choose colors like aqua, pink, yellow, or white for a personalized look, while the waterproof Deutsch connector keeps everything sealed and marine ready. VAST technology increases cone efficiency for stronger bass without increasing size, and Klippel Verified engineering ensures low distortion and accurate sound reproduction. Add stainless steel corrosion resistant hardware plus interchangeable grille options like spoke or stainless steel styles, and you get a subwoofer that delivers tight bass, clean design, and long-lasting marine reliability in one complete package.
Frequently Asked Questions (FAQ)
- • Why Does My M2D4-10S Sound Flat in a Small Enclosure?
If the bass lacks depth even though the subwoofer is operating, verify that the enclosure is close to the recommended 0.5 cu. ft. sealed volume and that there are no unwanted air leaks around the mounting surface.
- • What Happens If I Accidentally Set the Versa Switch to the Wrong Impedance?
The M2D4-10S uses a Versa Switch to configure the dual voice coils for either 2Ω or 8Ω operation. Selecting an impedance that does not match your amplifier's capabilities can cause poor output or amplifier protection problems.
- • Why Does the Bass Seem to Disappear at Certain Listening Positions?
Users can experience noticeably different bass depending on where the subwoofer is mounted. Try changing the subwoofer's orientation or listening position before changing amplifier settings, because cabin or boat acoustics can create strong bass peaks and cancellations.
- • Why Does My Amplifier Get Extremely Hot During Long Bass Sessions?
An amplifier can generate substantial heat when driven continuously at high output. Check that the amplifier has adequate ventilation and that the M2D4-10S is presenting an impedance the amplifier is designed to handle.
- • Why Does the Subwoofer Sound Weak After I Changed the Wiring?
Changing the DVC configuration can change the load seen by the amplifier. Recheck the Versa Switch position and speaker connections whenever the bass output suddenly changes after rewiring.
- • Why Is There a Rattle Around the Grille When the Bass Hits?
A grille or mounting hardware that is not firmly secured can vibrate when the woofer reaches higher excursion. Inspect the mounting screws, grille inserts, and surrounding panel for loose components before adjusting the amplifier.
- • Why Won't My RGB Lighting Work While the Subwoofer Still Plays?
The audio and Color Optix lighting connections are separate. The M2D4-10S requires the PMX-RGB controller and RF Connect App for Color Optix control, so the subwoofer can produce bass even when the lighting system has a connection problem.
- • Can Water Exposure Damage the Connections Even If the Subwoofer Is Marine Rated?
The M2D4-10S is built for marine environments, but improperly installed or damaged connectors can still create electrical problems. Inspect the Deutsch/Amphenol connections for corrosion, damaged seals, or loose wiring after repeated exposure to water.
- • Why Does My New Subwoofer Have Less Impact Than My Older One?
A new subwoofer may sound different because of enclosure volume, amplifier power, impedance configuration, crossover settings, and installation location. The M2D4-10S is optimized for a compact sealed enclosure, so comparing it with a different enclosure design may not be an equal comparison.
- • Why Did My System Suddenly Lose Bass After Working Normally?
A sudden reduction in output can come from a loose speaker connection, amplifier protection, incorrect impedance configuration, damaged wiring, or changed DSP/crossover settings. Rockford Fosgate also advises diagnosing installation issues before requesting a product return because incorrect installation can result in a “No Trouble Found” diagnosis.
- Diameter : 10 Inch
- Impedance : 4 Ohm
- Frequency Response : 20-750 Hz
- RMS Power Range : 400 Watts
- Peak Power Handling : 1600 Watts
- Color : White
- Mounting Depth : 4.24 Inches
Features:
- Marine Environmental Compliance: Built and validated using ASTM B117 & D4329 salt/fog testing and ASTM G154 UV exposure standards to ensure long-term durability in harsh marine conditions.
- Selectable Dual Impedance Configuration: Integrated switch allows adjustment between 2-ohm and 8-ohm operation by reconfiguring dual 4-ohm voice coils in series or parallel, delivering 400W RMS and 1600W peak power handling.
- Infinite-Baffle Optimized Design: Specifically engineered for free-air installation, allowing flexible mounting locations without requiring a dedicated enclosure while maintaining strong low-frequency response.
- Dynamic RGB Lighting System: Integrated red, green, and blue LEDs behind the grille provide multi-color illumination options including yellow, pink, aqua, and white for customizable visual effects.
- Marine-Grade LED Connectivity: Includes a 4-pin waterproof Deutsch DT Series connector and harness for secure LED integration, with optional compatibility for external lighting controllers (sold separately).
- Dual Wiring Terminal Options: Features both standard quick-slide terminals and a 2-pin waterproof Deutsch connector for flexible and corrosion-resistant installation.
- Enhanced Acoustic Efficiency Technology: Utilizes VAST (Vertical Attach Surround Technique) to increase effective cone area, improving bass output without enlarging the basket size.
- Precision Engineered Performance: Klippel Verified design optimizes motor structure, suspension dynamics, and voice coil alignment for reduced distortion and improved sound accuracy.
- Corrosion-Resistant Construction: Equipped with stainless steel mounting hardware designed to withstand long-term exposure to saltwater and marine environments.
- Interchangeable Grille System: Includes multiple grille styles (spoke and stainless steel options) mounted via secure hardware for customizable appearance and protection.
Specifications:
- Power Handling (Watts RMS): 400 Watts
- Nominal Impedance (Ohms): 2-Ohm or 8-Ohm Switchable
- Size10"
- Voice Coil Diameter: 1.95" (49.53 mm)
- Magnet Weight (oz): 32.9 oz. (0.9 Kg)
- Voice Coil Type: Dual Voice Coil
- Fs (Hz): 28
- Re (Ohms): 6.5
- Le (mH): 3.43
- Sd (cm2): 363
- Qms: 5.18
- Qes: 1.07
- Sealed Box Volume (Vb): 0.5 cu. ft. (14 Liters)
- Qts: 0.89
- Vas: 38.2
- SPL (dB @ 1w/1m): 86
- Xmax (mm): 12.0
- Woofer Displacement: 0.07 cu. ft. (2.03 Liters)
- Speaker Connector: Deutsch™ and 1/8" Spade
- Cutout Diameter: 8.87 in. (225.3 mm)
- Mounting Depth: 4.24 in. (107.7 mm)
- UPC: 780687355654
- Weight: 10
- 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.
