{"product_id":"poly-planar-waterproof-marine-vhf-radio-extension-speaker","title":"Poly-Planar Waterproof Marine VHF Radio Extension Speaker","description":"\u003cp\u003e\u003cstrong\u003ePoly-Planar's MB-41-W is a compact, fully waterproof external VHF radio speaker designed to extend and clarify marine communications without adding music fidelity.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis 4.6-inch square marine-grade external speaker from Poly-Planar (model MB-41-W) is built to survive salt, spray, and sun while routing VHF transmissions to remote locations on your vessel. It’s purpose-built for clear voice reproduction on marine radios, not for high-fidelity audio, and ships as a single unit with a mounting bracket for easy installation.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this speaker hold up in harsh marine environments?\u003c\/h3\u003e\n\u003cp\u003eThe MB-41-W is engineered to resist the corrosive effects of saltwater and outdoor exposure. Materials and construction focus on durability so the speaker maintains function after prolonged marine use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFully waterproof and corrosion-proof construction\u003c\/li\u003e\n  \u003cli\u003eStainless steel grille and sturdy plastic frame\u003c\/li\u003e\n  \u003cli\u003ePolypropylene cone and Teflon-coated wires for longevity\u003c\/li\u003e\n  \u003cli\u003eMounting bracket for secure, weather-resistant installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this speaker improve VHF radio clarity on my boat?\u003c\/h3\u003e\n\u003cp\u003eYes — the MB-41-W is tuned for voice frequencies typical of VHF marine radios, improving intelligibility at remote helm stations or cockpit areas. Keep in mind it’s optimized for speech rather than music fidelity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFrequency response focused on 1 kHz to 10 kHz for clear voice reproduction\u003c\/li\u003e\n  \u003cli\u003e83 dB ±3 dB sound pressure level for audible output without distortion\u003c\/li\u003e\n  \u003cli\u003e4 ohm impedance compatible with many marine radio remote outputs\u003c\/li\u003e\n  \u003cli\u003ePeak power handling of 20 watts per pair when paired with compatible outputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and where can I mount it?\u003c\/h3\u003e\n\u003cp\u003eThe compact 4.6-inch square footprint and included mounting bracket make placement flexible and straightforward. It can be surface-mounted on consoles, cabins, or any exterior helm location where a remote VHF speaker is needed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e4.6\" square speaker size fits small mounting spaces\u003c\/li\u003e\n  \u003cli\u003eBracket allows tilt and swivel adjustments for optimal directionality\u003c\/li\u003e\n  \u003cli\u003eTeflon-coated wiring improves routing through wet environments\u003c\/li\u003e\n  \u003cli\u003eDesigned as a single-unit remote speaker; not supplied in boxed pairs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat electrical specs and limitations should I know?\u003c\/h3\u003e\n\u003cp\u003eThe MB-41-W suits typical marine VHF systems but isn’t intended for stereo audio or high-power music setups. Check compatibility with your radio’s remote speaker output and observe the impedance and power handling ratings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSpeaker impedance: 4 ohm — match to the radio’s specifications\u003c\/li\u003e\n  \u003cli\u003ePeak power handling: 20 watts per pair (single-unit usage follows radio output limits)\u003c\/li\u003e\n  \u003cli\u003eFrequency range: 1 kHz to 10 kHz, optimized for voice\u003c\/li\u003e\n  \u003cli\u003eNot marketed as a music-grade speaker; designed for communications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Poly-Planar MB-41-W is ideal for boat owners, captains, and crews who need a rugged, weatherproof remote VHF speaker to improve radio intelligibility at secondary helm positions, cockpits, or flybridges. Choose this unit if you want a compact, corrosion-resistant external speaker specifically tuned for marine voice communications rather than high-fidelity music playback.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the Poly-Planar MB-41-W waterproof?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The MB-41-W is completely waterproof and corrosion-proof with stainless steel grills and sealed components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this speaker for music onboard?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. It’s optimized for VHF voice clarity and not designed for high-fidelity music playback.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Poly-Planar","offers":[{"title":"Default Title","offer_id":48413418193053,"sku":"B000THUZTA","price":59.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/poly-planar-mb-41-w-front-mounted_jpg.jpg?v=1781264550","url":"https:\/\/nexoltic.com\/products\/poly-planar-waterproof-marine-vhf-radio-extension-speaker","provider":"Nexoltic","version":"1.0","type":"link"}