Kicker
KM8 8-inch Coaxial Speakers
Best marine upgrade for boaters seeking powerful sound and customizable aesthetics.
Upgrade your boat's audio with Kicker KM8 8-Inch Coaxial Speakers. These marine-grade speakers deliver exceptional sound and value, built to endure harsh marine conditions. Customize your boat's look with integrated RGB LED lighting and included white and charcoal grilles. Engineered for durability and superior audio performance, these 8-inch speakers offer a significant upgrade over smaller options. For full LED control, a KMLC controller is sold separately. Experience Kicker's renowned quality on the water.
$207.96
Owner Satisfaction
4.7
/ 5
Category Rank
19
/ 495
#19 in Marine Speakers
Price vs Category Average
-32%
Below average
RMS Power Handling
150
/ Watts
Who it's for
- Boat owners needing gear that survives harsh saltwater conditions
- Audio enthusiasts wanting powerful bass that cuts through engine noise
- Style-conscious boaters looking to customize their vessel's interior aesthetic
Who should skip it
- Budget-focused buyers seeking an affordable audio upgrade
- Owners of smaller boats with limited mounting space
- Users wanting a simple, plug-and-play audio installation
Performance breakdown
Marine Durability
Rugged construction stands up to salt, spray, and intense sun exposure.
Audio Output
High sensitivity ensures clear, loud sound even over engine and wind.
Bass Response
Eight-inch drivers provide a fuller low-end punch than standard smaller speakers.
Aesthetic Customization
Swappable grilles and integrated RGB lighting offer versatile styling for any boat.
Installation Versatility
Standard mounting depth fits most factory cutouts with minimal modification required.
Power Efficiency
Optimized to deliver impressive volume without needing massive external amplification.
Key Specs
RMS Power Handling
150 Watts
Peak Power Handling
300 Watts
Impedance
4 Ohms
Sensitivity
92.0 dB @ 1W/1m
Frequency Response
30 Hz - 21 Khz
Nominal Size
8.0 inches
Mounting Depth
3.75 inches (82mm)
Speaker Type
Coaxial
Features
- Includes both white and charcoal grilles
- Customizable RGB LED lighting
- Engineered for marine environments
- High efficiency for loud output
- Superior sound quality
- Exceptional value for 8-inch speakers
- Durable construction
- Legendary Kicker quality
What customers say
Customers enthusiastically rate the Kicker KM8 speakers as a top choice for marine and powersports audio due to their exceptional performance and build quality. Users consistently praise the immense volume and clarity, noting the sound profile delivers crisp highs and a punchy mid-range that effectively cuts through ambient noise. The speakers maintain sonic integrity even with high power input, avoiding distortion. Durability is a major highlight; the marine grade construction ensures resilience against harsh elements like sun and humidity. While bass is solid, pairing them with a subwoofer is suggested for the deepest lows. Overall, the KM8s are viewed as an excellent investment offering superior performance and robust longevity.
Know before you buy
No, the KM8 speakers include both white and charcoal grilles in the box, allowing you to choose the look that best fits your boat's aesthetic during installation.
The speakers come with integrated RGB LEDs, but you will need to purchase the Kicker KMLC LED controller separately to customize the colors and lighting patterns.
These are standard 8-inch coaxial speakers with a mounting depth of 3.75 inches. It is recommended to measure your current mounting depth and cutout diameter to ensure they will clear any obstructions behind your panels.
Yes, they are specifically engineered for marine environments with durable, corrosion-resistant construction. They are designed to withstand exposure to salt, spray, and sun, though they should not be submerged.
These speakers handle 150 watts RMS and 300 watts peak. To get the best sound quality and output, pair them with an amplifier that can provide clean power within that RMS range.
The 8-inch size offers a larger cone area, which generally results in better bass response and higher volume levels with less distortion. They are a significant upgrade if you have the mounting space and want a fuller, more powerful sound profile.
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