1 / 7
Variants
12” dual‑voice‑coil (DVC) 4‑ohm sealed marine subwoofer in a purpose‑built Element Ready design. Integrates Color Optix™ lighting control, Deutsch/Amphenol plug‑and‑play connectors, and a VersaSwitch™ for easy impedance selection.
Buyer confidence
88%Highlights
- 2-Year Warranty
- 100% UV Stable ASA plastic frame & grille design stands up to harsh marine environment
- VAST vertical attach surround technique increases effective radiating cone area up to 25%
- Klippel Verified certification program delivers the best possible loudspeakers
Key specs
Full specs- Size
- 12"
- Qes
- 1.08
- Nominal Impedance (Ohms)
- 2-Ohm or 8-Ohm Switchable
- Qts
- 0.85
- Qms
- 4.26
- Sd (cm2)
- 539
- Le (mH)
- 3.43
- Re (Ohms)
- 6.5
Key specs
Full specs- Size
- 12"
- Qes
- 1.08
- Nominal Impedance (Ohms)
- 2-Ohm or 8-Ohm Switchable
- Qts
- 0.85
Highlights
Overview- 2-Year Warranty
- 100% UV Stable ASA plastic frame & grille design stands up to harsh marine environment
- VAST vertical attach surround technique increases effective radiating cone area up to 25%
Overview
12” dual‑voice‑coil (DVC) 4‑ohm sealed marine subwoofer in a purpose‑built Element Ready design. Integrates Color Optix™ lighting control, Deutsch/Amphenol plug‑and‑play connectors, and a VersaSwitch™ for easy impedance selection.
Best for
- Boat owners who need compact, sealed subwoofer performance with integrated lighting options
- Marine audio systems requiring plug‑and‑play connectivity and corrosion‑resistant components
- Installations with limited enclosure space where a sealed design is preferred
Key points
- 12" DVC 4Ω sealed enclosure subwoofer—sold individually
- Color Optix™ compatible: lighting controlled via Rockford Fosgate Color Optix™ controller and RF Connect app (controller/app sold separately)
- Element Ready™ construction for resistance to water, salt, and UV exposure
- True Marine Ecosystem with integrated Deutsch™ / Amphenol™ connections for marine‑grade plug‑and‑play
- VersaSwitch™ allows switching impedance for 2Ω to 8Ω system compatibility
- IP67 certification and IPX6 water intrusion rating; Klippel verified; ISO60068‑2‑64 vibration tested
Fit and use
Designed for marine use in sealed enclosures and compact installations. Pairs with external marine amplifiers and accessories; integrates with the Color Optix™ controller and RF Connect app for lighting control. Sold individually (one subwoofer per unit).
What to know
Color Optix™ controller and RF Connect app are sold separately. The subwoofer is supplied as a single unit—verify quantity needed for your system. Use the VersaSwitch™ to set impedance before final wiring. Grille inserts are available for different looks; confirm grille choice separately.
Resources
Product details and resources: Product page - https://rockfordfosgate.com/products/details/m2d4-12sb/ · RF Connect app (iOS) - https://apps.apple.com/us/app/rf-connect/id1445769139 · RF Connect app (Android) - https://p…
Highlights
Key features
- 2-Year Warranty
- 100% UV Stable ASA plastic frame & grille design stands up to harsh marine environment
- VAST vertical attach surround technique increases effective radiating cone area up to 25%
- Klippel Verified certification program delivers the best possible loudspeakers
- Element Ready™ design protects lighting from exposure
- Bright, wide-angle LEDs provide rich, reliable illumination
- IPX6 Water Intrusion Rated
- Gold plated marine grade brass terminals provide a corrosion resistant connection
- Deutsch DT connectors incorporate front/rear silicone seals to protect against environmental ingress
- Provides superb low and midrange frequency reproduction with smooth high frequency roll-off
- Industry’s first molded in-frame connectors for simple connectivity in addition to conventional spade terminals
- Integrated Deutsch™/Amphenol™ connectors make wiring connections simple and error proof
More info
Manufacturer details
The M2D4-12SB Color Optix™ 12” DVC 4-Ohm sealed enclosure subwoofers deliver loud, clear, accurate bass, and light the way for your journey! Sold individually (1 each).
Color Optix™: Adjust your own bright, wide, and limitless lighting experience with the Rockford Fosgate Color Optix™ plug-and-play controller (sold separately) and App.
Element Ready™: Purpose Built for the Marine Environment, Rockford’s Element Ready™ products are built to stand up to Water, Salt, and UV rays, making sure your subwoofers stand the test of time.
Grille Customization: Multiple grille options provides a customized look by using either the stainless-steel grille or the “sport” grille inserts, allowing you to dial in your personalized-on water experience.
True Marine Ecosystem: Integrated Deutsch™ / Amphenol™ connections provide industry leading marine plug-and-play connectivity and flexible install options.
Color Optix™: Requires PMX-RGB controller and RF Connect™ App
Color Optix™ Speakers | Launch
Color Optix™ Speakers | Overview
Color Optix™ Controller | Overview
Additional details
The M2 series of Element Ready™ subwoofers are designed to pair with the Rockford Fosgate Color Optix™ Controller and RF Connect App through its Deutsch™ and Amphenol™ connectors integrated into the basket. This combined with their IP67 certification make these speakers Element Ready™ and truly purpose built for marine applications. To compliment the plug and play connectivity and streamline installation, M2 subwoofers are equipped with a VersaSwitch™ to make changing impedance between 2 and 8 ohms as easy as flipping a switch. This subwoofer is designed to perform in small sealed designs when there is very little space for an enclosure.
Technologies
Color Optix™ Control
Adjust your own bright, wide, and limitless lighting experience with the Rockford Fosgate Color Optix™
VAST Surround - Marine
Rockford Fosgate's proprietary surround technique, VAST, provides up to a 25% increase in the speakers effective
VERSA Switch
Allows you to easily configure a 2Ω Dual Voice Coil subwoofer into 1Ω / 4Ω or a 4Ω DVC sub into 2Ω / 8Ω with the
True Marine Ecosystem
Dual Integrated Deutsch™ and Amphenol™ connections provide industry leading marine plug-and-play connectivity and
Element Ready™ | Subwoofers
All components are protected against harsh outdoor elements like Dust, UV, Temperature, Water, Corrosion &
ISO60068-2-64 Vibration Testing
ISO60068-2-64 Vibration testing standards ensure the product is durable and can withstand vibrations found on
Klippel Verified
To adorn the ‘Verified with Klippel’ mark, the qualifying company’s loudspeaker engineering personnel must be
IPX6 Water Intrusion Rated
A device with a level 6 water resistance rating can survive strong water jets projected by a 12.5mm nozzle at any
ASTM G154 Testing
ASTM G154 500Hr Accelerated UV testing
Showing the main technologies for this product.
Specs
Specifications
24
| Size | 12" |
| Qes | 1.08 |
| Nominal Impedance (Ohms) | 2-Ohm or 8-Ohm Switchable |
| Qts | 0.85 |
| Qms | 4.26 |
| Sd (cm2) | 539 |
| Le (mH) | 3.43 |
| Re (Ohms) | 6.5 |
| Fs (Hz) | 32 |
| Frequency Response (Hz) | 20 Hz - 750 Hz |
| Magnet Weight (oz) | 61.09 oz. (1.7 Kg) |
| Voice Coil Diameter | 1.95" (49.53 mm) |
| Xmax (mm) | 15 |
| SPL (dB @ 2.8v) | 89 |
| Vas | 7 |
| Voice Coil Type | Dual Voice Coil |
| Power Handling (Watts RMS) | 400 Watts RMS 1,600 Watts PEAK |
| Woofer Displacement | 0.121 (3.43 Liters) |
| SPL (dB @ 1w/1m) | 88 |
| Speaker Connector | 2-pin Deutsch™ and 1/8" Spade |
| Cutout Diameter | 11” (279.4 mm) |
| Mounting Depth | 4.87" (123.8 mm) |
| Shipping Weight | 10.64 Lbs. (4.83 Kg.) |
| Sealed Box Volume (Vb) | 0.75 (21 Liters) |
Reviews (0)
—
No average rating yet
0 reviews
No written reviews are live yet. Signed-in customers can submit one below.
No written reviews are live for this item yet.
Installation resources
Wiring diagrams
9
Wiring Diagram #1
Source: Rockford Fosgate
Wiring Diagram #2
Source: Rockford Fosgate
Wiring Diagram #3
Source: Rockford Fosgate
Wiring Diagram #4
Source: Rockford Fosgate
Wiring Diagram #5
Source: Rockford Fosgate
Wiring Diagram #6
Source: Rockford Fosgate
Wiring Diagram #7
Source: Rockford Fosgate
Wiring Diagram #8
Source: Rockford Fosgate
Wiring Diagram #9
Source: Rockford Fosgate
Support
Return Authorization
If you bought this product from Onkar Electronics, use the Contact Us page on the Onkar Electronics website and we will help with return authorization and warranty support. If you purchased it from another dealer, contact that authorized dealer first for return assistance.
Popular Questions
No FAQs available
Videos
Video
Similar products
Compare nearby options
Rockford Fosgate
M2D4-12I M2 12" DVC 4Ω Color Optix™ Infinite Baffle Marine Subwoofer
3.52 reviews
$819.99CAD
$969.99
In stock
Rockford Fosgate
M2D4-12IB M2 12" DVC 4Ω Color Optix™ Infinite Baffle Marine Subwoofer - Black
3.52 reviews
$819.99CAD
$969.99
In stock
Rockford Fosgate
M1D4-12 M1 12" DVC 4Ω Color Optix™ Marine Subwoofer
5.02 reviews
$439.99CAD
$519.99
In stock
Rockford Fosgate
M1D4-12B M1 12" DVC 4Ω Color Optix™ Marine Subwoofer - Black
5.02 reviews
$439.99CAD
$519.99
In stock