Rockford Fosgate M1D4-8 M1 8" DVC 4Ω Color Optix Marine Subwoofer (PRE-ORDER ONLY)

Sale price $359.00 Regular price $439.00


Delivers Loud, Clear, Accurate Bass, and Lights the Way for Your Journey!


The M1D4-8 Color Optix™ 8” DVC 4-Ohm subwoofers deliver loud, clear, accurate bass, and light the way for your journey! The subwoofers connect with the Rockford Fosgate Color Optix™ Controller and RF Connect App, allowing you to customize your own color patterns. The Element Ready™ design and IP67 certification makes them truly purpose-built for marine or motorsport applications where protection from damaging UV rays and water spray is essential.

The M1 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, M1 subwoofers are equipped with a VersaSwitch™ to make changing impedance between 2 and 8 ohms as easy as flipping a switch.

Color Optix™ Experience
Experience the Color Optix™ speaker and subwoofer line from Rockford Fosgate. Designed for watercraft of all kinds, they are Element Ready to withstand water, salt, and UV rays.


  • Optically clear UV stable RGB Lighting Encapsulation
  • Ultra-bright wide-angle RGB LEDs provide rich, reliable illumination
  • Vented motor design with water-repelling nano coated mesh screen
  • 1.5" (39mm) High Temp Kapton™ Woofer Voice Coil Former
  • Fully insulated silicone tinsel leads
  • 100% UV Stable ASA plastic frame & grille design stands up to harsh marine environment
  • Zinc Nickel-plated Marine grade brass connection terminals
  • 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
  • Linear Synthetic Fiber Blend Spiders
  • Santoprene VAST Surround
  • VAST vertical attach surround technique increases effective radiating cone area up to 25%
  • Co-molded surround and mineral filled polypropylene cone body
  • VERSA impedance switch quickly allows series or parallel configuration without additional wiring


  • Size 8"
  • Nominal Impedance (Ohms) 2-Ohm or 8-Ohm Switchable
  • Power Handling (Watts RMS) 150 Watts RMS / 1600 Watts PEAK
  • Le (mH) 1.70
  • Voice Coil Type Dual Voice Coil
  • Frequency Response 20 Hz - 750 Hz
  • Re (Ohms) 6.3
  • SPL (dB @ 1w/1m) 87.5
  • Sd (cm2) 227
  • Woofer Displacement 1.40 cu. ft. (0.05 Liters)
  • Xmax (mm) 7.0
  • Vas (Liters) 15.7
  • Qts 0.90
  • Mounting Depth 3.43 in. (87.1 mm)
  • Cutout Diameter 7.10 in. (180.4 mm)
  • Qes 0.79
  • Qms 9.2
  • Fs (Hz) 44.5
  • Magnet Weight (oz) 17.72 oz. (0.50 Kg)
  • Voice Coil Diameter 1.5" (38.6 mm)
  • Speaker Connector Deutsch™
  • Shipping Weight 4.6 Lbs. (2.10 Kg.)