{"product_id":"kicker-km4-4-inch-marine-coaxial-speakers-marine-grade-sound","title":"Kicker KM4 4-Inch Marine Coaxial Speakers - Marine-Grade Sound","description":"\u003cp\u003eOur review of the Kicker KM4 4-in marine coaxial speakers finds them to be a compact, purpose-built choice for boat owners who want clear audio without a complicated install. The single biggest reason to buy is reliability in a marine environment: these speakers are built to meet ASTM salt fog and UV exposure standards, and they include both charcoal and white grilles for easy styling. For small boats, consoles, or personal watercraft where space is limited but sound matters, the KM4 delivers useful output and surprisingly crisp highs for its size.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-grade construction:\u003c\/strong\u003e The drivers and materials meet ASTM salt fog and accelerated UV tests so they resist corrosion and sun degradation in wet conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e The 4-in coaxial design fits tight mounting locations while providing a full-range response for small craft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide frequency response:\u003c\/strong\u003e With a 60-20,000 Hz range, these speakers reproduce bass through clear highs for vocal and instrumental detail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGood sensitivity:\u003c\/strong\u003e At 89 dB sensitivity, the KM4s make effective use of modest RMS power and sound louder than many same-size speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible styling:\u003c\/strong\u003e Both charcoal and white grilles are included so installers can match the speaker to their boat finish without extra parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower handling:\u003c\/strong\u003e Rated for 2-50 watts RMS (150 watts peak), they suit small marine head units and compact amplifiers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe KM4s are aimed at boat owners who need durable, space-conscious speakers for small to medium vessels, wakeboards, or console installs. If you want a ready-made marine speaker that resists salt and UV and offers decent clarity for voice and music, these are a sensible pick.\u003c\/p\u003e\n\u003cp\u003eThose seeking deep, room-filling bass or very high output for a large boat party should look at larger multi-way marine speakers or dedicated subwoofers instead; the 4-in drivers are limited in low-frequency extension despite the full-range design.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMarine-grade build resists salt fog and UV, increasing long-term reliability.\u003c\/li\u003e\n\u003cli\u003eIncludes both charcoal and white grilles for easy visual matching to the boat.\u003c\/li\u003e\n\u003cli\u003eGood sensitivity and a wide frequency response deliver clear highs and balanced mids for small installs.\u003c\/li\u003e\n\u003cli\u003eCompact 4-in size fits tight mounting locations where larger speakers won't.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLimited bass extension compared with larger marine speakers or subwoofers.\u003c\/li\u003e\n\u003cli\u003eRated 2-ohm impedance may require compatible amplifiers or attention to wiring for optimum power delivery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eDriver size\u003c\/td\u003e\n\u003ctd\u003e4 in (100 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTweeter\u003c\/td\u003e\n\u003ctd\u003e1\/2 in (13 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower range\u003c\/td\u003e\n\u003ctd\u003e2-50 W RMS (150 W peak)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e60-20,000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e89 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e2 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrille options\u003c\/td\u003e\n\u003ctd\u003eCharcoal and white included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe KM4 4-in marine coaxial speakers are a practical choice for small-boat audio upgrades where marine durability and compact size matter. They offer reliable, clear sound and useful styling options for the price, though buyers needing strong low bass should plan to add a subwoofer or choose a larger speaker. For most personal watercraft and small boats, these deliver solid value and dependable marine performance.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these speakers weatherproof?\u003c\/strong\u003e\u003cbr\u003eYes, they meet ASTM salt fog and accelerated UV exposure tests for marine conditions and are built to resist corrosion and sun damage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat amplifier power do they need?\u003c\/strong\u003e\u003cbr\u003eThey are rated 2-50 W RMS per speaker and can handle peaks to 150 W; match them to a head unit or amp that can deliver clean power within that RMS range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo they come with different grille colors?\u003c\/strong\u003e\u003cbr\u003eYes, both charcoal and white grilles are included so you can choose the look that matches your boat.\u003c\/p\u003e","brand":"KICKER","offers":[{"title":"Default Title","offer_id":46763020222683,"sku":"B079H2TJF7","price":116.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61KA4rD7VOL._AC_SL1500.jpg?v=1747804364","url":"https:\/\/gearmusthave.com\/products\/kicker-km4-4-inch-marine-coaxial-speakers-marine-grade-sound","provider":"GearMustHave","version":"1.0","type":"link"}