Kicker 45KMF122 is a 12-inch KMF-Series weatherproof marine subwoofer designed for free-air applications in boat audio systems. The marine subwoofer platform gives boat owners a dedicated bass upgrade for open-air listening where automotive subwoofers are not the right fit. Key Performance Features 12-inch weatherproof marine subwoofer Designed for free-air applications 2 Ω nominal impedance Built for boat audio bass systems Marine construction for outdoor audio environments Marine / Powersports Durability Designed for marine, powersports, motorcycle, or outdoor audio environments when used in the intended application Weather-resistant construction supports installations exposed to vibration, moisture, and outdoor conditions Proper mounting, wiring, and amplifier matching are required for reliable long-term operation System Architecture Type: Marine subwoofer Size: 12-inch Nominal Impedance: 2 Ω Application: Free-Air Applications Power Handling / Output RMS Power: Verify against Kicker specifications before amplifier matching Peak Power: Not provided Driver / Construction Weatherproof marine subwoofer driver platform Designed for low-frequency output in boat audio systems Marine-grade construction for outdoor use Installation Use Cases Boat subwoofer upgrades Marine systems using free-air applications Open-air bass improvement for cockpit and cabin audio Technical Specifications Brand: Kicker Series: KMF Model: 45KMF122 Product Type: Marine subwoofer Size: 12-inch Impedance: 2 Ω Application: free-air applications Identifiers & Packaging MPN: 45KMF122 UPC: 713034084792 Sold As: Single Subwoofer Included Components: Subwoofer, grille where applicable, mounting hardware, documentation Why Buy From MCOR Automotive Authorized retailer for the brands we sell Specialists in marine, powersports, motorcycle, and vehicle audio upgrades Expert support for speaker selection, amplifier matching, and clean system setup