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Clarion CMG2512W

10" 4-ohm marine subwoofer

Item #: 020CMG2512

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Make waves with a marine sub

Cruising around in the sun and spray is a great way to spend a day on the water, but it can be rough on your boat's stereo system. If you want to keep the bass booming for years to come, you need to install a quality marine sub like the Clarion CMG2512W. Careful design and rigorous testing ensure that this powerful sub is ready to rock, even the extremes of a marine environment.

Built for life on a boat

This 10" 4-ohm subwoofer features a rugged, waterproof polypropylene cone with a Santoprene rubber surround that stands up to humidity and punishing UV rays. A liquid drainage system keeps water from building up and causing corrosion. The sub's high-impact plastic shell protects the basket and magnet, and the integrated white plastic grille looks great in any boat.

This subwoofer can be used in sealed or ported enclosures, or in infinite baffle (free air) applications. Stainless steel mounting hardware is included.

Note: Clarion's illuminated speaker grilles will add safe, subtle lighting to your evening cruises or nights at the dock.

Product Highlights:

  • 10" marine sub
  • handles up to 150 watts RMS (350 watts max)
  • single 4-ohm voice coil
  • mica-injection polypropylene cone with Santoprene rubber surround
  • high-impact Centrex 814 grill and frame
  • meets or exceeds ASTM B117 (salt/fog exposure)
  • meets or exceeds ASTM D4329 (UV exposure)
  • liquid drainage system
  • rubber mounting gasket
  • gold plated speaker terminals
  • magnetic shielding integrated into basket
  • ferric oxide magnet
  • stainless steel mounting hardware included
  • for sealed or ported enclosures or infinite baffle (free air) applications
  • frequency response: 60-20,000 Hz
  • sensitivity: 90 dB
  • warranty: 1 year
  • Our 60-day money-back guarantee

Clarion CMG2512W Reviews

Average Customer Review:

2 Reviews

Great replacement

Written by: John from Ohio on August 2, 2015

Crutchfield Customer Review (What's this?)

Used to replace an older model Clarion subwoofer in a Tiara that's exposed to the elements. Old one lasted 8 years before getting dried out and buzzy, which is respectable to me. This sub was a drop-in replacement. 5 minutes to swap and no more buzz, just pure bass.

Pros: Easy swap. Drop-in replacement.

Cons: White was slightly bluer than old unit... Not bad but different


Written by: Bill from Omaha on September 18, 2014

Crutchfield Customer Review (What's this?)

Don't waste your money this is the worst purchase I have ever made Spend $100 more and buy something good

Pros: None

Cons: Junk

Hands-on research

What's in the box?

Download owner's manual

  • One 10" Marine subwoofer
  • Plastic grille
  • Four 1-3/8" Stainless steel self-tapping screws
  • 4 Stainless steel speed clips
  • Specifications/Wiring diagram
  • Warranty information
  • Template (the template is in the box but not labeled)

Product Research


Marine Speakers: The Clarion CMG2512W subwoofer is designed and treated for use in the harsh marine environment. The watertight speaker meets or exceeds the ASTM B117 Salt/Fog Exposure standard, as well as the ASTM D4329 UV Exposure standard.

Water-resistant Materials: The speaker features a 10" mica-injected polypropylene cone woofer with a Santoprene rubber surround. The basket and grille are made of durable Centrex 814 plastic. The magnet is fully enclosed to protect it from corrosion. The speaker includes stainless steel mounting screws and an integrated rubber mounting gasket for a watertight fit.

Free-air Mounting: In addition to being compatible with sealed and ported enclosures, the CMG2512W woofer can be used in free-air applications; mounted on a baffle board separating the front of the speaker from the back.

Drain Channel: The speaker frame and grille have an integrated drain channel to allow water to escape from the front of the cone area.

Terminals: The terminals are gold-plated to resist corrosion.

Speaker Wire Support Tab: The speaker basket has a tab adjacent to the speaker terminals for securing the speaker wire and provide strain relief for the speaker terminal.

Magnetic Shielding: The subwoofer is magnetically shielded to minimize compass and gauge deviation in your dash.

Stainless Hardware: The provided mounting hardware is stainless steel.

Our Product Research Team

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