Kicker
KM Series 10-inch Subwoofer
Best marine subwoofer for boaters seeking durable, high-performance bass.
Experience superior sound on the water with the Kicker KM104 10-inch KM Series Marine Subwoofer. Engineered for the toughest marine conditions, it boasts a weather-resistant design that meets ASTM standards for UV and salt/fog exposure. Enjoy robust bass thanks to its polypropylene cone and Santoprene® surround, all housed in a splash-proof, sealed motor structure for lasting performance. This 4-Ohm subwoofer handles 175 watts RMS and 350 watts peak power, ensuring your audio system sounds incredible. Customize your boat's ambiance with optional LED grilles (sold separately) for a vibrant light show.
$149.99
Owner Satisfaction
4.7
/ 5
Category Rank
4
/ 330
#4 in Marine Electronics
Price vs Category Average
-81%
Below average
Subwoofer Size
10
/ inches
Who it's for
- Boat owners needing long-lasting equipment for harsh saltwater environments
- Audio enthusiasts wanting powerful bass in open-air marine settings
- Installers requiring flexible mounting options for custom boat layouts
Who should skip it
- Budget-conscious buyers looking for standard car audio pricing
- Owners with limited space in shallow boat compartments
- DIY installers wanting a simple, plug-and-play lighting setup
Performance breakdown
Marine Durability
ASTM-certified construction ensures total resilience against harsh salt and UV exposure.
Bass Output
Delivers punchy, reliable low-end frequencies perfect for open-air boat environments.
Waterproofing Integrity
IPX7 rating provides peace of mind against heavy splashes and moisture.
Installation Versatility
Standard mounting depth makes integration into most boat consoles straightforward.
Power Efficiency
Handles 175 watts RMS effectively without requiring massive, complex amplifier setups.
Aesthetic Customization
Optional LED grilles offer a vibrant visual upgrade for evening cruises.
Key Specs
Subwoofer Size
10 inches
RMS Power Handling
175 watts RMS
Peak Power Handling
350 watts peak
Impedance
4 Ohms
Frequency Response
30 Hz - 500 Hz
Sensitivity
86.24 dB
Cone Material
Polypropylene
Surround Material
Santoprene®
Features
- Built for harsh marine environments
- Weather-resistant for salt and UV exposure
- Splash-proof design for durability
- Powerful, deep bass output
- Long-lasting performance
- Optional LED lighting for customization
- Corrosion-resistant polymer basket
- Includes stainless mounting hardware
What customers say
The Kicker KM Series 10-inch Subwoofer is highly praised for its exceptional durability and impressive sound quality, making it a standout choice for marine and powersports applications. Its robust construction is designed to endure harsh elements like salt spray and UV exposure, offering superior resilience compared to standard car audio subwoofers. Users consistently report deep, clean, and powerful bass output that often exceeds expectations, even in open-air settings. The subwoofer handles high power well, integrating smoothly with amplifiers for extended listening without distortion. While a premium investment, its longevity, specialized marine rating, and reliable high fidelity bass justify the cost, delivering excellent value for weather-resistant outdoor audio systems.
Know before you buy
Yes. The KM104 is built to meet ASTM standards for salt and fog exposure, featuring a corrosion-resistant polymer basket and a sealed motor structure designed to withstand harsh marine conditions.
No, the LED lighting is not included with the subwoofer. You can purchase compatible LED grilles separately if you want to add customizable lighting to your installation.
This subwoofer handles 175 watts RMS. For the best performance and longevity, you should pair it with an amplifier that provides stable power within that RMS range.
You will need a mounting depth of at least 5 inches to properly install this 10-inch subwoofer.
Yes, it is specifically engineered for marine use with an IPX7 rating, meaning it is splash-proof and designed to deliver deep bass even in open-air environments.
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