Alpine 12-Inch Marine Subwoofer with Integrated RGB Lighting in White - MRN-W12S4-IB-LW

Alpine MRN-W12S4-IB-LW 12-Inch Marine Subwoofer with Integrated RGB Lighting in White

Deep Bass for the Open Water
Make your marine audio system stand out with a 12-inch white subwoofer that combines high output, durable construction and refined styling. With 600W RMS power handling, 1,800W peak power and a sensitivity rating of 86.0 dB, this subwoofer is designed to deliver strong bass performance in a marine environment. The ultra-rigid polypropylene and carbon-fiber parabolic cone, HAMR surround and high-grade double-stacked strontium ferrite magnet assembly are all built to support powerful, controlled low-frequency sound.

Ready for the Elements
A day on the water calls for audio equipment that can handle changing conditions, and this IP66-certified marine subwoofer is prepared for the job. It’s dust- and water-resistant, salt- and fog-resistant and UV-resistant, making it a reliable addition to a boat sound system. The fixed non-removable white grille, waterproof Deutsch speaker connector and included waterproof RGB connector help reinforce its marine-friendly design, while the RGB LED optical-diffusion grille brings added visual appeal.

Flexible System Planning
This marine subwoofer is optimized for infinite-baffle applications and can also be used in sealed enclosures, offering flexibility during installation. A recommended subsonic filter of 25 Hz should be used when paired with a mono amplifier. With a mounting depth of 7-9/32 inches and a cutout diameter of 10-13/16 inches, it is designed for practical integration into your audio build. The lighting system requires a controller and remote, and the compatible KTX-MRN-LED-RF controller is sold separately for added customization.

Key Features

• Premium 12" marine subwoofer sold individually
• Built on Alpine’s legendary R-Series platform
• Alpine Signature Sound optimized for outdoor listening
• 600W RMS / 1,800W peak power handling
• 20 mm Xmax for powerful bass impact
• 4-ohm single voice coil
• Optimized for infinite-baffle installations
• Compatible with sealed enclosures; ported enclosures not recommended
• Ultra-rigid polypropylene and carbon-fiber parabolic cone
• High Amplitude Multi-Roll (HAMR) surround
• Double-stacked strontium ferrite motor
• IP66-certified dust- and water-resistant assembly
• Salt, fog, UV, and vessel water-tightness tested
• Integrated 4-pin RGB LED optical-diffusion grille (Controller and Remote Required)

Features

• Bass That Carries Across the Water
  Out on the water, bass has to work harder to be heard and felt. The MRN-W12S4-IB-LB combines 600 watts RMS of power handling with a long-excursion design that moves more air for stronger low-frequency impact. Kick drums hit with greater weight, bass lines feel fuller, and the entire system gains the depth that marine speakers alone cannot provide. Whether cruising at speed, relaxing at anchor, or entertaining at the dock, the music sounds bigger, more energetic, and more complete throughout the boat.
• Protected for Life on the Water
  The MRN-W12S4-IB-LB is built for the conditions that come with life on the water. IIts IP66-certified dust- and water-resistant construction helps protect against dust and powerful water spray, while salt, fog, and UV resistance support lasting durability in demanding marine environments. Separate waterproof connections protect the speaker signal and RGB lighting wiring, with both mating connectors included for a clean, secure installation. A fixed black and gray grille protects the woofer and maintains a bold, polished appearance season after season.
• Made for Infinite-Baffle Installations
  The MRN-W1254-IB-LB is optimized for infinite-baffle marine installations, using the open space behind the mounting panel instead of requiring a traditional subwoofer enclosure. This helps preserve valuable onboard storage while adding powerful, full- bodied bass to the system. Its flexible design also supports use in a properly engineered sealed enclosure when the installation calls for one. Ported enclosures are not recommended, helping keep system planning simple and performance consistent.
• Powerful Bass That Stays Controlled
  Built on Alpine's legendary R-Series platform, the MRN-W1254-IB-LB uses an ultra-rigid polypropylene and carbon-fiber parabolic cone with a high-excursion suspension to keep bass powerful and controlled as the volume rises. A large 65 mm voice coil, double- stacked magnet, and integrated airflow help manage heat during extended playback. Together, these technologies deliver bass that hits with authority, starts and stops cleanly, and gives the music a deep, commanding foundation whether cruising at speed or entertaining at the dock.
• Distinctive Style with RGB Lighting
  A fixed black grille gives the MRN-W1254-IB-LB a bold, refined presence that complements dark interiors, black trim, and modern marine finishes. Integrated 4-pin RGB LED lighting shines through an optical-diffusion grille for a smooth, even glow after sunset, creating anything from subtle accent lighting to a more energetic atmosphere onboard. LED operation requires a compatible controller and remote, sold separately. Pair the subwoofer with Alpine's KTX-MRN-LED-RF LED Controller & Remote for convenient lighting control.