M2D4/D2-12S

The Rockford Fosgate M2D4/D2-12S subwoofers from the M2 Series combine powerful bass reproduction with rugged marine technology and customizable RGB lighting. With 400 watts RMS, high-quality materials, and Element Ready™ construction, they are ideal for use on boats, yachts, and in other demanding outdoor environments.

The built-in Color Optix™ RGB lighting can be customized using an optional Rockford Fosgate Color Optix controller and the RF Connect app. Thanks to the built-in Deutsch™ and Amphenol™ connectors, installation is straightforward.

The innovative VAST™ technology increases the effective radiating area of the diaphragm by up to 25% and delivers powerful bass reproduction. The mineral-filled polypropylene diaphragm, UV-resistant materials, and water-repellent components ensure high resistance to harsh environmental conditions.

The built-in VersaSwitch™ allows you to switch the impedance between series and parallel configurations without additional wiring. The subwoofers were specifically designed for compact, sealed enclosures and offer additional design options with their interchangeable stainless steel and white sport protective grilles.

Technical Specifications

• Manufacturer: Rockford Fosgate

• Series: M2 Marine Color Optix™

• Model variants: M2D4-12S / M2D2-12S

• Product Type: Marine Subwoofer

• Speaker size: 30 cm (12 inches)

• Nominal diameter: 304.8 mm

• RMS Power Handling: 400 watts

• Maximum power handling: 1,600 watts

• Voice Coils: Dual Voice Coil (DVC)

• Voice coil impedance M2D4-12S: 2 × 4 ohms

• Switchable total impedance of the M2D4-12S: 2 or 8 ohms

• Voice coil impedance M2D2-12S: 2 × 2 ohms

• Switchable total impedance M2D2-12S: 1 or 4 ohms

• Impedance Switching: VersaSwitch™

• Frequency range: 20–750 Hz

• Efficiency: 90 dB (2.83 V/1 m, according to the manufacturer's manual)

• Voice coil diameter: 49.5 mm (approx. 2 inches)

• Voice Coil Carrier: High-Temperature Kapton™

• Voice coil construction: 2-layer

• Diaphragm material: Mineral-filled polypropylene

• Membrane Technology: VAST™ with up to 25% larger effective membrane area

• Bead: UV-resistant, injection-molded foam

• Centering spider: Aramid-polyester composite material

• Connecting wires: Fully silicone-insulated

• Speaker basket: High-temperature-resistant plastic

• Terminal blocks: Gold-plated marine brass

• Connectors: Integrated Deutsch™ and Amphenol™ connectors

• Protection Technology: Element Ready™

• Water Resistance: IPX6 according to the European product specification

• UV Protection: UV-resistant membrane, beading, and mesh materials

• Enclosure Recommendation: Sealed Subwoofer Enclosure

• Installation depth: 123.8 mm

• Installation opening: 279.4 mm

• Case Color: White

• Protective Grilles: Stainless Steel Grilles and White Sports Protective Grilles

• Quality Testing: Klippel Verified
  
  

Thiele-Small parameters (TSP)

• Resonance frequency (Fs): 38 Hz

• Overall Quality (Qts): 0.85

• Equivalent volume (Vas): 64 liters

• Maximum linear deflection (Xmax): 15 mm

• Chassis displacement: 3.43 liters

The measurements are taken with voice coils connected in series

RGB Lighting

• Lighting System: Rockford Fosgate Color Optix™

• LED Technology: Ultra-bright wide-angle RGB LEDs

• Lighting: Customizable RGB colors and lighting effects

• LED Protection: Optically clear, UV-resistant encapsulation

• Operating voltage: 9–16 volts DC

• LED current consumption: 0.25 A

• Recommended LED fuse rating: 1 A

• Control: Optional Color Optix™ Controller

• App Support: Rockford Fosgate RF Connect App

• Connection: Integrated connectors

• RGB Controller: Sold separately
  
  

What's Included

• 1 × Rockford Fosgate M2D4-12S or M2D2-12S marine subwoofer

• 1 × Stainless Steel Protective Grate

• 1 × White Sport Protective Mesh Insert

• 1 × User and Installation Manual
  
  

Note: The subwoofers are intended for installation in enclosed enclosures and are not designed for use as free-air subwoofers. A separately available Color Optix™ controller is required for individual control of the RGB lighting
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