The Kicker KM12 12-inch Marine Subwoofer is built for boat owners who want real bass performance on the water without sacrificing durability. Designed specifically for marine environments, the KM12 handles moisture, UV exposure, vibration, and harsh weather while delivering powerful low-frequency output that stays clean and controlled at speed.
Unlike traditional car subwoofers, the KM Series uses marine-grade materials engineered for open-air environments where wind noise and engine noise normally kill bass response. Whether you are upgrading a wake boat, pontoon, fishing boat, center console, or yacht audio system, the KM12 provides the low-end performance needed to complete a serious marine audio setup.
This 2-ohm marine subwoofer works best in sealed or ported enclosures and pairs perfectly with Kicker marine amplifiers for strong output and long-term reliability.
Key Features
- 12-inch marine-grade subwoofer
- Single 2-ohm voice coil
- 175 watts RMS power handling
- 350 watts peak power handling
- Designed for sealed or ported enclosures
- Injection-molded polypropylene cone
- Santoprene surround for marine durability
- Weather-resistant motor structure
- Polymer basket resists corrosion
- Stainless mounting hardware included
- Protective terminal cap
- ASTM tested for UV and salt/fog exposure
- Deep marine bass performance for boats and powersports systems
- Designed for open-air marine environments
Specifications
- Brand: Kicker
- Series: KM Series
- Model: KM12
- Manufacturer Part Number (MPN): 45KM122
- SKU: 45KM122
- UPC: 713034084754
- Product Type: Marine Subwoofer
- Subwoofer Size: 12-inch
- Voice Coil Configuration: Single Voice Coil
- Impedance: 2 Ohm SVC
- RMS Power Handling: 175 Watts
- Peak Power Handling: 350 Watts
- Frequency Response: 30Hz – 500Hz
- Sensitivity: 88.1 dB
- Mounting Depth: 5.5 inches
- Cutout Diameter: 11 inches
- Outer Diameter: 13 inches
- Recommended Sealed Box Volume: 1.25 – 3.5 ft³
- Recommended Ported Box Volume: 1.75 – 2.25 ft³
- Magnet Type: Large Ceramic Magnet
- Cone Material: Injection-Molded Polypropylene
- Surround Material: Santoprene
- Basket Material: Polymer Marine Basket
- Marine Rating: ASTM Salt/Fog & UV Tested
- Mounting Style: Flush Mount
- Weight: 11.35 lbs
- Condition: New
- Country of Manufacture: China
- HS Code: 8518.29.8000
What’s Included
- (1) Kicker KM12 12-inch Marine Subwoofer
- (1) Rear Gasket
- Stainless Steel Mounting Hardware
- Mounting Screw Clips
- Owner’s Manual
Built for Real Marine Conditions
Most standard subwoofers are not designed for moisture, UV exposure, and constant vibration. The Kicker KM12 is engineered specifically for marine use with weather-resistant materials and marine-tested durability standards.
This subwoofer meets or exceeds ASTM testing standards for:
- Salt fog exposure
- UV resistance
- Marine weather durability
That means longer life and more reliable bass performance on Lake Erie, pontoons, wake boats, center consoles, fishing boats, and offshore applications.
Ideal Applications
- Pontoon boat audio systems
- Wake boat stereo systems
- Fishing boat audio upgrades
- Yacht audio systems
- Marine bass enclosure builds
- Custom fiberglass subwoofer enclosures
- UTV and powersports audio systems
- Open-air marine audio systems
Recommended System Pairing
The Kicker KM12 works extremely well with:
- Kicker marine amplifiers
- Marine DSP systems
- RGB marine speaker systems
- Sealed fiberglass marine enclosures
- Ported marine subwoofer boxes
- Kicker KM marine speakers
For best performance, pair this subwoofer with a properly tuned marine amplifier delivering around 175 watts RMS at 2 ohms.
Why This Marine Subwoofer Performs Better on the Water
Boat audio systems lose bass quickly due to:
- Wind noise
- Engine vibration
- Open-air sound loss
- Water reflection
- Weak factory stereo systems
The KM12 solves these problems by producing stronger low-frequency output specifically designed for marine environments where traditional car subwoofers struggle.
Marine Audio Installation in Mentor Ohio
At Stereo Installs, we professionally install marine subwoofers, amplifiers, DSP systems, RGB lighting, and complete boat stereo systems for customers across Mentor, Cleveland, Lake County, and Northeast Ohio.
We build:
- Custom marine subwoofer enclosures
- Amplifier racks
- RGB marine lighting systems
- Complete marine audio systems
- High-output Lake Erie boat stereo systems
Get a Quick Quote today for professional marine audio installation.
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We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.