M212S4B 12" Marine Subwoofer - Black

The M212S4B 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
1 Year Standard Warranty

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M212S4B

Just because you're on the water doesn't mean you have to go without bass. Put this 12" in your boat and you just may redefine 'party barge'! This subwoofer is designed for free air/infinite baffle applications.

Downloads

2008 Marine Subwoofers - owner's manual & data sheets

CEA-2031

Power handling on Rockford Fosgate speakers conform to CEA-2031 industry standards.

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VAST Surround - Subwoofers

The Vertical Attach Surround Technique significantly increases a subwoofer's effective radiating...

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Flex Fit Basket - Subwoofer

The slot mounted frame pattern allows fine-tuning of the subwoofer's mounting position.

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CEA-2031 Compliant:

Size:

12"

Nominal Impedance:

4-Ohm

Power Handling (Watts RMS):

300 Watts RMS
600 Watts Max

Voice Coil Diameter:

1.95'
49.53mm

Magnet Weight (oz):

93.6 oz.
2.65 kg.

Speaker Connector:

Corrossion resistant 8 AWG spring load

Fs (Hz):

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):

Xmax (mm):

12.0

Woofer Displacement (in):

0.053 cu. ft.
(1.50 Liters)

Cutout Diameter (in):

10.95 in.
(27.82 cm)

Mounting Depth (in):

6.58 in.
(16.72 cm)

Shipping Weight:

20.1 Lbs.
(9.15 Kg.)

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Return Authorization

Contact the Authorized Rockford Fosgate Dealer you purchased this product from. If you need further assistance, call 1-800-669-9899 for Rockford Customer Service. You must obtain an RA# (Return Authorization number) to return any product to Rockford Fosgate. You are responsible for shipment of product to Rockford.

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Woofer WiringWizard

The below woofer wiring diagrams are possible with the voice coil type used in the subwoofer. Care should be taken to select an amplifier that can safely handle the woofer's total impedance load.