KICKER KM4 4-Inch Marine Coaxial Speakers | 4-Ohm, 1/2-Inch Tweeters, Charcoal & White Grilles

All-season sound for your boat

The KICKER KM4 4-Inch Marine Coaxial Speakers pair rugged durability with clear, wide-range audio designed for salty air and sunlit decks. Each unit presents a 4-ohm impedance and a power handling range from 2 to 50 watts RMS, with peak capabilities up to 150 watts. The 60 Hz to 20,000 Hz frequency response covers crisp highs and balanced mids, while the 89 dB sensitivity helps you hear detail at moderate listening levels.

Why KM4 fits your boat

Engineered for marine environments, these speakers feature weather-tolerant construction and grilles in charcoal and white to complement your helm or cabin aesthetic. The combination of materials aims to resist corrosion and maintain performance in varying conditions.

• 4-ohm impedance supports common marine amps and head units
• RMS 2-50 W per speaker with up to 150 W peak for dynamic bursts
• 60-20,000 Hz frequency range for versatile sound coverage
• Sensitivity around 89 dB helps you hear more detail from modest volumes

Sound on the water

Expect crisp highs from the 1/2-inch tweeters paired with the 4-inch coaxial woofer. The result is clear dialogue, lively midrange, and a sense of space that travels with you across the wake, without overpowering the boat’s ambiance.

Installation and style

With a compact 4-inch design, KM4 speakers fit a wide range of marine enclosures and mounting options. The charcoal and white grille finishes offer styling flexibility, letting you tailor the look to your vessel while preserving performance.

Use case ideas

• Upgrade helm-area sound for day trips or sunset cruises
• Enhance boat bays and swim platforms with reliable onboard audio
• Pair with a marine-rated amp for balanced, room-filling sound on deck