{"product_id":"boss-audio-mr4-3w-4-in-marine-enclosed-speaker-system-compact-power","title":"Boss Audio MR4.3W 4-in Marine Enclosed Speaker System - Compact Power","description":"\u003cp\u003eIn this review the Boss Audio MR4.3W is presented as a compact, affordable marine speaker system best suited for RVs, travel trailers and small boats where space is limited and durability matters. The single biggest reason to consider these speakers is the combination of a polypropylene cone design and a dedicated dome tweeter that together deliver surprisingly clear sound for the size, making them a practical choice for anyone who wants better audio without complex installation. The review examines sound, build, installation and long-term concerns so buyers know what to expect.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact enclosed design:\u003c\/strong\u003e The 4-in speaker enclosure keeps installation simple and provides usable bass response for small cabins and cockpit areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-way system:\u003c\/strong\u003e A 0.75 in dome tweeter and 1.5 in poly midrange combine with the polypropylene cone to produce clear highs and balanced mids for vocals and navigation audio.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-capable components:\u003c\/strong\u003e Rubber surround and plastic basket reduce corrosion risk compared with open metal frames and make mounting easier in damp environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded swivel brackets:\u003c\/strong\u003e The swivel brackets simplify aiming the speakers and speed installation, which is useful for DIY installs in RVs or trailers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower handling and impedance:\u003c\/strong\u003e Rated 200 watts system power with 4 ohm impedance, these speakers pair well with modest marine or RV amplifiers without overloading output stages.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThese speakers are aimed at owners of RVs, travel trailers, small boats and personal watercraft who need a compact, enclosed marine speaker that is easy to mount and delivers clear sound at low to moderate listening levels. The package suits users who prioritize simple installation and value for money over audiophile-level fidelity.\u003c\/p\u003e\u003cp\u003eThose who need stainless steel hardware, heavy-duty saltwater protection, or large low-frequency output should look elsewhere; the MR4.3W is not designed as a high-power offshore solution and some buyers report rust issues over extended exposure to harsh marine conditions.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGood sound quality for size, with clear highs from the dome tweeter and usable mids from the poly cone.\u003c\/li\u003e\n\u003cli\u003eEasy installation thanks to the enclosed design and included swivel brackets.\u003c\/li\u003e\n\u003cli\u003eStrong value for money with practical components like rubber surround and plastic basket.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eMixed build quality feedback and reports of rust resistance problems in prolonged moist conditions.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e4 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e80 Hz - 18 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e85 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCone\u003c\/td\u003e\n\u003ctd\u003ePolypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTweeter \/ Midrange\u003c\/td\u003e\n\u003ctd\u003e0.75 in dome tweeter, 1.5 in poly midrange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (D x W x H)\u003c\/td\u003e\n\u003ctd\u003e5.3 in x 5.3 in x 8.8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e3 Year Platinum Online Dealer Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Boss Audio MR4.3W is a sensible choice for RV and small-boat owners who want an affordable, compact marine speaker system that is easy to install and sounds better than typical cabin speakers. It offers clear highs and balanced mids for most on-the-road and on-the-water listening, but buyers who need rugged offshore corrosion resistance or deep bass should consider heavier-duty alternatives.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAre these speakers suitable for small boats?\u003c\/strong\u003e\u003cbr\u003eYes, they work well in small boat and RV cabins where space is limited, but avoid prolonged exposure to salt spray without extra corrosion protection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat amplifier impedance do they need?\u003c\/strong\u003e\u003cbr\u003eThe speakers are 4 ohm impedance and pair with most marine or RV amplifiers rated for 4 ohm loads.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo they come with mounting hardware?\u003c\/strong\u003e\u003cbr\u003eThey include swivel brackets to simplify positioning and installation, but check for any additional screws or seals needed for your mounting surface.\u003c\/p\u003e","brand":"BOSS Audio Systems","offers":[{"title":"Default Title","offer_id":48261364351195,"sku":"B00B65J6A8","price":68.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71TS1TdsLyL._AC_SL1500.jpg?v=1778287320","url":"https:\/\/gearmusthave.com\/products\/boss-audio-mr4-3w-4-in-marine-enclosed-speaker-system-compact-power","provider":"GearMustHave","version":"1.0","type":"link"}