{"product_id":"polk-mm652-6-5in-coaxial-speaker-marine-car-flagship","title":"Polk MM652 6.5in Coaxial Speaker - Marine \u0026 Car Flagship","description":"\u003cp\u003eIn this review the Polk MM652 6.5in coaxial speaker is judged as a versatile option for people who want a single speaker that works in both vehicles and on the water. Its single biggest selling point is the Ultra-Marine certification paired with Polk's material choices, which deliver clear mids and highs and a surprisingly solid low end for a 2-way coaxial. The reviewer found it well suited to owners who need corrosion resistance and weatherproofing without sacrificing sound quality, and notes the crossover and Dynamic Balance design as central to the speaker's clean, distortion-free output.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Marine certification:\u003c\/strong\u003e IP56-level testing for salt fog, UV and humidity gives reliable corrosion resistance for marine use and extended life in harsh conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuild and materials:\u003c\/strong\u003e A titanium-plated composite woofer cone with Santoprene surround and stainless steel mounting hardware resists weathering while keeping cone motion controlled.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTweeter and crossover:\u003c\/strong\u003e The 1in Terylene fabric tweeter and epoxy-coated crossover direct highs and lows appropriately, resulting in clear highs and fuller bass response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower handling:\u003c\/strong\u003e Rated 100W RMS and 300W peak with a 4-ohm impedance, the speaker handles reasonable amplifier power for noticeable volume without obvious clipping at typical driving levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResonance control:\u003c\/strong\u003e Polk's Dynamic Balance process reduces distortion and improves dispersion so vocals and instruments remain articulate at higher volumes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation extras:\u003c\/strong\u003e Supplied mounting hardware and grille options simplify custom installs and give the finished install a cleaner look.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe MM652 is aimed at boat owners who need speakers that survive constant exposure to salt, sun and spray but still deliver better fidelity than many basic marine speakers. It is also a good pick for car audio enthusiasts who want a durable 6.5in coaxial with balanced sonic character for daily driving and highway listening.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include buyers wanting subwoofer-level bass from a 6.5in coaxial or listeners requiring ultra-high output for pro-level SPL competitions; a dedicated subwoofer or separate component system would be a better match in those cases.\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\u003eExcellent clarity in mids and highs thanks to the Terylene tweeter and epoxy-coated crossover.\u003c\/li\u003e\n\u003cli\u003eDurable, splash-proof construction with IP56-level certification and stainless hardware for marine environments.\u003c\/li\u003e\n\u003cli\u003eDynamic Balance design reduces distortion and yields wide, even dispersion for better imaging.\u003c\/li\u003e\n\u003cli\u003eGood value for a dual-purpose speaker that covers both car and marine installs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAs a 6.5in coaxial it cannot reproduce deep sub-bass the way a dedicated subwoofer can.\u003c\/li\u003e\n\u003cli\u003eInstallation experiences vary; some users may find fitment or mounting depth requires extra adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeaker type\u003c\/td\u003e\n\u003ctd\u003e2-way coaxial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e6.5in (6.5 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower handling\u003c\/td\u003e\n\u003ctd\u003e100W RMS \/ 300W peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e4 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e40Hz - 40kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTweeter\u003c\/td\u003e\n\u003ctd\u003e1in Terylene fabric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial certification\u003c\/td\u003e\n\u003ctd\u003eIP56 Ultra-Marine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Polk MM652 6.5in coaxial is a sensible buy for anyone who needs a rugged, weatherproof speaker that still sounds detailed in cars or on boats. It balances material quality, sensible power handling and Polk's resonance-control processes to deliver clear, usable sound and strong value compared with single-purpose marine or car-only models.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these speakers safe for saltwater environments?\u003c\/strong\u003e\u003cbr\u003eYes. The MM652 carries an IP56 Ultra-Marine certification and uses corrosion-resistant hardware and waterproof surrounds designed to withstand salt fog and humidity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill these speakers work with a factory car stereo?\u003c\/strong\u003e\u003cbr\u003eThey can be used with a factory head unit, but pairing them with an aftermarket amplifier will allow them to deliver fuller dynamics and reach their 100W RMS capability more reliably.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo they require special grilles or mounting hardware?\u003c\/strong\u003e\u003cbr\u003ePolk includes mounting hardware and stylish grilles to simplify installation; however installers should check depth and fit for their specific vehicle or boat mount locations.\u003c\/p\u003e","brand":"Polk Audio","offers":[{"title":"Default Title","offer_id":46759624114395,"sku":"B072Q8BNV5","price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71vsW8CqPiL._AC_SL1200.jpg?v=1747804449","url":"https:\/\/gearmusthave.com\/products\/polk-mm652-6-5in-coaxial-speaker-marine-car-flagship","provider":"GearMustHave","version":"1.0","type":"link"}