Kicker 45KM42 is a 4-inch KM-Series marine coaxial speaker pair designed for compact boat speaker replacement locations. The small-format coaxial design gives marine systems a practical upgrade option where larger 6.5-inch or 8-inch speakers will not fit. Key Performance Features 4-inch KM-Series marine coaxial speaker pair Compact size for smaller speaker openings 4-ohm design for standard marine audio systems Weather-resistant construction for boat audio use 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 coaxial speaker pair Size: 4 inches Nominal Impedance: 4 Ω Application: Boat cockpit, cabin, and compact marine audio locations Power Handling / Output RMS Power: Verify against Kicker specifications before amplifier matching Peak Power: Not provided Driver / Construction Coaxial marine speaker design Integrated tweeter Weather-resistant marine construction Installation Use Cases Compact boat speaker replacement Small cockpit or cabin speaker locations Marine systems where larger speakers will not fit Technical Specifications Brand: Kicker Series: KM Model: 45KM42 Product Type: Marine coaxial speaker pair Size: 4 inches Impedance: 4 Ω Identifiers & Packaging MPN: 45KM42 UPC: 713034085072 Sold As: Pair Included Components: Two speakers, grilles, 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
