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Rockford Fosgate  M2D4-12SB

M2 Series 12" 1600W Peak Power Handling 4 Ohms Dual Voice Coils Color Optix™ Sealed Enclosure Marine Subwoofer - Black

Item #90988

Condition:   Brand New

Product Highlights

  • 12" Marine Subwoofer
  • 400W RMS, 1600W Peak
  • 4 Ohms Dual Voice Coils
  • Color Optix™ Sealed Enclosure
  • Black

  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
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FREE Shipping (No Minimum).
60 DAYS Price change protection.

$599.99

Reg. Price $699.99  Save $100.00
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Rockford Fosgate M2D4-12SB M2 Series 12" 400W RMS (1600W Peak Power Handling) 4 Ohms Dual Voice Coils Color Optix™ Sealed Enclosure Marine Subwoofer - Black


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?
  • • 12" M2 Series Marine Subwoofer
  • • Stainless steel grille
  • • Sport grille (Black)
  • • Grille frame (Black)
  • • 11" LED power harnesses with 4-pin Deutsch connector on one end
  • • (6) 3" Stainless steel Allen head screws
  • • 4mm Allen head bit
  • • 4.5mm Drill bit (for fiberglass enclosures only)
  • • Rockford Fosgate contact information
  • • Owner's Manual
Built to Survive Salt, Sun, and Serious Marine Abuse

The Rockford Fosgate M2D4-12SB is engineered for the kind of environments where most subs give up early. It is tested to ASTM B117 salt fog and ASTM G154 UV standards, meaning it is built to handle constant moisture, harsh sunlight, and salt exposure without losing reliability. Whether it is installed on a boat or an open-air system, this sub is designed to keep performing strong and consistent in real-world marine conditions.

Power Control That Fits Your Setup Perfectly

This subwoofer gives you flexible system matching without the headache. The selectable dual impedance design lets you switch between 2 ohms and 8 ohms by rewiring the dual 4 ohm voice coils in series or parallel, while still delivering solid output at 400W RMS and 1600W peak power. It is also optimized specifically for compact sealed enclosures tuned to 0.75 cubic feet, giving you tight, accurate, and controlled bass that hits clean without needing a large box.

Clean Bass Performance With Smart Engineering and Custom Style

The M2D4-12SB brings together performance, precision, and style in one package. The RGB lighting system behind the grille lets you customize your look with colors like aqua, pink, yellow, or white, while the waterproof Deutsch connector keeps everything sealed and marine ready. VAST technology increases cone efficiency for stronger bass in a compact design, and Klippel Verified engineering ensures low distortion and accurate sound reproduction. With stainless steel corrosion resistant hardware and flexible wiring options, this subwoofer delivers tight bass, reliable durability, and a clean custom look built for serious marine setups.

 


SPECIFICATIONS


  • Diameter : 12 Inch
  • Sensitivity : 88 dB
  • Impedance : 4 Ohm
  • Frequency Response : 20-750 Hz
  • RMS Power Range : 400 Watts
  • Peak Power Handling : 1600 Watts
  • Color : Black
  • Mounting Depth : 4.87 Inches

FEATURES


Features:

  • Marine Environmental Certification: Built and tested to ASTM B117 salt/fog and ASTM G154 UV standards to ensure dependable operation in harsh marine and outdoor conditions.
  • Selectable Dual Impedance Design: Integrated switch enables easy configuration between 2Ω and 8Ω by rewiring dual 4Ω voice coils in series or parallel, supporting 400W RMS and 1600W peak power handling.
  • Optimized Sealed Enclosure Performance: Designed specifically for compact sealed box applications, tuned for 0.75 ft³ enclosure volume to deliver tight, accurate, and controlled bass response.
  • Dynamic RGB Lighting System: Integrated red, green, and blue LEDs behind the grille allow customizable multi-color lighting effects including white, aqua, yellow, and pink.
  • Marine-Grade LED Connectivity: Includes a 4-pin waterproof Deutsch DT Series connector and harness for secure installation, with compatibility for external LED controllers (sold separately).
  • Dual Terminal Connectivity Options: Features both standard quick-slide terminals and a sealed 2-pin Deutsch connector for flexible and corrosion-resistant wiring.
  • Advanced Cone Efficiency Design: Incorporates VAST (Vertical Attach Surround Technique) to maximize cone surface area and enhance bass output without increasing overall frame size.
  • Precision Acoustic Engineering: Klippel Verified design optimizes motor structure, suspension movement, 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.
  • Sealed Box System Tuning: Engineered specifically for small sealed enclosures, delivering deep, controlled bass ideal for compact marine audio installations.

 

Specifications:

  • Size: 12"
  • Nominal Impedance (Ohms): 2-Ohm or 8-Ohm Switchable
  • Power Handling (Watts RMS): 400 Watts RMS/ 1,600 Watts PEAK
  • Voice Coil Type: Dual Voice Coil
  • Voice Coil Diameter: 1.95" (49.53 mm)
  • Magnet Weight (oz): 61.09 oz. (1.7 Kg)
  • Frequency Response (Hz): 20 Hz - 750 Hz
  • Fs (Hz): 32
  • Le (mH): 3.43
  • Re (Ohms): 6.5
  • Sd (cm2): 539
  • Qms: 4.26
  • Qes: 1.08
  • Qts: 0.85
  • Vas: 7
  • SPL (dB @ 1w/1m): 88
  • SPL (dB @ 2.8v): 89
  • Xmax (mm): 15
  • Speaker Connector: 2-pin Deutsch™ and 1/8" Spade
  • Cutout Diameter: 11” (279.4 mm)
  • Mounting Depth: 4.87" (123.8 mm)
  • Sealed Box Volume (Vb): 0.75 (21 Liters)
  • Woofer Displacement: 0.121 (3.43 Liters
  • UPC: 780687358235
  • Weight: 11
  • 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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