1 / 5
Variants
The Rockford Fosgate M1D4-12 is a 12" dual‑voice‑coil (4 Ω) Color Optix™ marine subwoofer engineered for marine applications. It combines bass performance with lighting capability and marine‑grade construction for use on boats and other watercraft.
Buyer confidence
88%Highlights
- 2-Year Warranty
- Zinc Nickel-plated Marine grade brass connection terminals
- Santoprene VAST Surround
- VAST vertical attach surround technique increases effective radiating cone area up to 25%
Key specs
Full specs- Size
- 12"
- Voice Coil Type
- Dual Voice Coil
- Nominal Impedance (Ohms)
- 2-Ohm or 8-Ohm Switchable
- Frequency Response
- 20 Hz - 750 Hz
- Power Handling (Watts RMS)
- 300 Watts RMS 1200 Watts PEAK
- Voice Coil Diameter
- 2" (50 mm)
- Magnet Weight (oz)
- 39.75 oz. (1.13 Kg)
- Fs (Hz)
- 27
Key specs
Full specs- Size
- 12"
- Voice Coil Type
- Dual Voice Coil
- Nominal Impedance (Ohms)
- 2-Ohm or 8-Ohm Switchable
- Frequency Response
- 20 Hz - 750 Hz
Highlights
Overview- 2-Year Warranty
- Zinc Nickel-plated Marine grade brass connection terminals
- Santoprene VAST Surround
Overview
The Rockford Fosgate M1D4-12 is a 12" dual‑voice‑coil (4 Ω) Color Optix™ marine subwoofer engineered for marine applications. It combines bass performance with lighting capability and marine‑grade construction for use on boats and other watercraft.
Best for
- Marine boats and watercraft seeking dedicated low‑frequency output
- Systems where switchable impedance is useful to match different amplifiers
- Owners who want customizable speaker lighting via Color Optix™
Key points
- 12" dual‑voice‑coil (DVC) 4 Ω configuration
- Color Optix™ lighting support (requires PMX‑RGB controller and RF Connect app; controller sold separately)
- Element Ready™ build with marine‑grade resistance to water, salt, and UV
- Integrated Deutsch™ / Amphenol™ connections for streamlined marine connectivity
- VersaSwitch™ lets you change impedance between 2 and 8 ohms
- IP67 certification and industry testing cited for marine durability
Fit and use
Sold individually (1 each). Designed for marine installations—pair with a compatible marine amplifier and enclosure and set the VersaSwitch™ to match your amplifier's preferred impedance. For Color Optix™ lighting, use the PMX‑RGB controller and RF Connect app (controller sold separately).
What to know
This speaker is purpose built for marine use and includes marine‑grade connections and certification noted by the manufacturer. Color Optix™ lighting requires a separate PMX‑RGB controller and the RF Connect app. The product is sold individually; confirm the number of units needed for your system before purchase.
Highlights
Key features
- 2-Year Warranty
- Zinc Nickel-plated Marine grade brass connection terminals
- Santoprene VAST Surround
- VAST vertical attach surround technique increases effective radiating cone area up to 25%
- Vented motor design with water-repelling nano coated mesh screen
- Fully insulated silicone tinsel leads
- Ultra-bright wide-angle RGB LEDs provide rich, reliable illumination
- 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
- VERSA impedance switch quickly allows series or parallel configuration without additional wiring
- 2" (50mm) High Temp Kapton™ Woofer Voice Coil Former
- Linear Synthetic Fiber Blend Spiders
Technologies
Element Ready™ | Subwoofers
All components are protected against harsh outdoor elements like Dust, UV, Temperature, Water, Corrosion &
ASTM B117 Testing
ASTM B117 500Hr Salt/Fog Testing Standards
Klippel Verified
To adorn the ‘Verified with Klippel’ mark, the qualifying company’s loudspeaker engineering personnel must be
ASTM G154 Testing
ASTM G154 500Hr Accelerated UV testing
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
ISO60068-2-64 Vibration Testing
ISO60068-2-64 Vibration testing standards ensure the product is durable and can withstand vibrations found on
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
Specs
Specifications
24
| Size | 12" |
| Voice Coil Type | Dual Voice Coil |
| Nominal Impedance (Ohms) | 2-Ohm or 8-Ohm Switchable |
| Frequency Response | 20 Hz - 750 Hz |
| Power Handling (Watts RMS) | 300 Watts RMS 1200 Watts PEAK |
| Voice Coil Diameter | 2" (50 mm) |
| Magnet Weight (oz) | 39.75 oz. (1.13 Kg) |
| Fs (Hz) | 27 |
| Re (Ohms) | 7.6 |
| Le (mH) | 3.40 |
| Sd (cm2) | 585.4 |
| Qms | 8.20 |
| Qes | 0.63 |
| Vented Box Volume (Vb) | 2.45 cu. ft. (69.38 Liters) |
| Sealed Box Volume (Vb) | 1.65 cu. ft. (46.72 Liters) |
| Qts | 0.59 |
| Vas | 113.1 |
| SPL (dB @ 1w/1m) | 92 |
| Xmax (mm) | 6.0 |
| Woofer Displacement | 3.49 (0.12 Liters) |
| Speaker Connector | Deutsch™ |
| Cutout Diameter | 10.85" (275.6 mm) |
| Mounting Depth | 6.65" (169.1 mm) |
| Shipping Weight | 9 Lbs. (4.1 Kg.) |
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
Accessories
Rockford Fosgate
RFWP16-30 16 AWG Speaker Wire Packaged 30 Foot Frosted Black/Silver
$59.99CAD
$79.99
In stock
Rockford Fosgate
PMX-RGB Color Optix™ Light Controller with Optional App Interface
2.65 reviews
$129.99CAD
$159.99
In stock
Rockford Fosgate
RGB-6 6 Ft. Color Optix™ Extension Cable for PMX-RGB (Gen-2)
$29.99CAD
$39.99
In stock
Rockford Fosgate
RGB-16 16 Ft. Color Optix™ Extension Cable for PMX-RGB (Gen-2)
$39.99CAD
$49.99
In stock
Rockford Fosgate
RGB-25 25 Ft. Color Optix™ Extension Cable for PMX-RGB (Gen-2)
$49.99CAD
$59.99
In stock
Rockford Fosgate
RGB-Y4P 4-Pin Color Optix™ Y-Adaptor for PMX-RGB (Gen-2)
5.01 review
$39.99CAD
$49.99
In stock
Similar products
Compare nearby options
Rockford Fosgate
M2D4-12SB M2 12" DVC 4Ω Color Optix™ Sealed Enclosure Marine Subwoofer – Black
5.01 review
$819.99CAD
$969.99
In stock
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
M2D4-12S M2 12" DVC 4Ω Color Optix™ Sealed Enclosure Marine Subwoofer
5.01 review
$819.99CAD
$969.99
Backorder