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Rockford Fosgate

Rockford Fosgate 12" Black Marine Subwoofer - M212S4B

Abt Model: M212S4B | UPC Code: 780687328764
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Rockford Fosgate - M212S4B - Marine Subwoofers
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Product Details

Rockford Fosgate 12" Black Marine Subwoofer - M212S4B

The M212S4 is a black 12” subwoofer designed for marine watercraft or powersports applications. It features a stainless steel grille is UV and moisture resistant and can be used in sealed, vented or infinite baffle installations.


  • True Marine Grade compliance
  • UV stable Centrex® injection molded plastic parts
  • Proprietary corrosion resistant gold plated bare-wire input push-type terminals
  • Injection molded mineral filled parabolic polypropylene cone body with UV inhibitors
  • UV and Salt-Fog resistant TPE (Thermo-Plastic Elastomer) surround
  • 16 gauge corrosion resistant removable Stainless Steel grille cover insert
  • Internal magnetic shielding for reduced electromagnetic interference potential
  • Fully insulated ultra-flexible lead wire
  • High temperature Kapton® former with polyimide insulated copper wire
  • Moisture, tear and fatigue resistant aramid fiber spider
  • Linear, high excursion matched motor magnetics and suspension design
  • Removable trim ring


  • Size: 12"
  • Nominal Impedance: 4-Ohm
  • Power Handling (Watts RMS):
    • 300 Watts RMS
    • 600 Watts Max
  • Voice Coil Diameter: 1.95'
  • Magnet Weight (oz): 93.6 oz.
  • Speaker Connector: Corrossion resistant 8 AWG spring load
  • Fs (Hz): 35
  • Re (Ohms): 3.10
  • Le (mH): 0.3
  • Qms: 9.00
  • Qes: 0.55
  • Qts: 0.52
  • Vas (Liters): 44.3
  • Sd (cm2): 510
  • SPL (dB @ 1w/1m): 87
  • Xmax (mm): 12.0
  • Woofer Displacement (in): 0.053 cu. ft. (1.50 Liters)

Approximate Dimensions:

  • Cutout Diameter (in): 10.95 in. (27.82 cm)
  • Mounting Depth (in): 6.58 in. (16.72 cm)

Approximate Weight

  • Shipping: 20.1 lbs

Warranty Information:

  • Manufacturer Warranty (authorized online retailer): One Year Limited Parts And Labor
More reasons to buy the Rockford Fosgate M212S4B from Abt Electronics
  • Abt.com is an authorized dealer (Learn More).
  • The Rockford Fosgate M212S4B is Brand New.
  • The Rockford Fosgate M212S4B Ships in a Factory Sealed Box.
  • Abt ships this product for free!
Rockford Fosgate 12" Black Marine Subwoofer

Rockford Fosgate 12" Black Marine Subwoofer


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