{"product_id":"40mm-full-range-speaker-driver-4ohm-5w-hifi-loudspeaker-unit","title":"40mm Full Range Speaker Driver 4Ω 5W HiFi Loudspeaker Unit","description":"\n\u003ch2\u003e40mm Full Range Internal Magnetic Speaker Driver – 4Ω \/ 5W\u003c\/h2\u003e\n\u003cp\u003eUpgrade your DIY audio projects with this compact \u003cstrong\u003e40mm full-range speaker driver\u003c\/strong\u003e. Featuring an internal magnetic circuit design, this square loudspeaker unit delivers clear, wide-frequency audio reproduction across the full 0–20kHz range — making it an ideal component for walkie-talkies, Bluetooth speaker builds, intercoms, and custom audio enclosures.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull-Range Audio:\u003c\/strong\u003e Reproduces frequencies from 0 to 20kHz for crisp, detailed sound across the entire audible spectrum.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Magnetic Design:\u003c\/strong\u003e Minimal external magnetic field leakage, reducing interference with nearby electronics.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Sensitivity:\u003c\/strong\u003e 94dB\/W sensitivity ensures efficient, clear output even at lower drive voltages.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Internal Resistance:\u003c\/strong\u003e 4Ω impedance pairs seamlessly with standard power amplifier modules (rated 3W, max 5W).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Built to withstand high-strength, low-temperature cycle testing for long-lasting reliability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Application:\u003c\/strong\u003e Suitable for walkie-talkies, Bluetooth speakers, intercoms, DIY audio enclosures, and more.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Form Factor:\u003c\/strong\u003e φ40mm diameter × 20mm height — fits easily into tight enclosures and project builds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eSquare 40mm Internal Magnetic Speaker\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMagnetic Circuit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eInternal Magnetic Type\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDrive Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e3.4V – 4.4V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eRated Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e3W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMax Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e5W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eImpedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e4Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e94dB\/W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eFrequency Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e0 – 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eφ40mm × H20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePackage Includes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e1 × Speaker Driver Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePerfect For DIY Audio Builders\u003c\/h3\u003e\n\u003cp\u003eWhether you're replacing a driver in an existing enclosure or building a brand-new speaker project from scratch, this 40mm full-range unit offers a reliable, low-distortion foundation. Its compact size and wide frequency response make it a go-to choice for makers, hobbyists, and electronics enthusiasts alike.\u003c\/p\u003e\n\n\u003cp\u003eLooking for more tools and gadgets for your projects? Check out our \u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e and the \u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge – DIY Tool\u003c\/a\u003e for your electronics and DIY toolkit.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Please allow 1–2cm of measuring deviation due to manual measurement. Colors may vary slightly depending on your monitor's display settings.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the impedance and power rating of this 40mm speaker driver?\u003c\/h4\u003e\n\u003cp\u003eA: This full-range speaker driver has a 4Ω impedance, a rated power of 3W, and a maximum power handling of 5W. It is designed to pair with standard 4Ω power amplifier modules commonly used in walkie-talkies and Bluetooth speaker builds.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What devices is this 40mm internal magnetic speaker compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This speaker driver is compatible with a wide range of audio devices including walkie-talkies, DIY Bluetooth speakers, intercoms, portable radios, and custom audio enclosures. Its compact 40mm × 20mm form factor makes it ideal for tight-space builds and replacement projects.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the internal magnetic design reduce interference with other components?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The internal magnetic circuit design significantly minimises external magnetic field leakage, reducing electromagnetic interference with surrounding components — making it a safer, more reliable choice for compact multi-component electronic builds.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the impedance and power rating of this 40mm speaker driver?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This full-range speaker driver has a 4Ω impedance, a rated power of 3W, and a maximum power handling of 5W. It is designed to pair with standard 4Ω power amplifier modules commonly used in walkie-talkies and Bluetooth speaker builds.\"}}, {\"@type\": \"Question\", \"name\": \"What devices is this 40mm internal magnetic speaker compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This speaker driver is compatible with a wide range of audio devices including walkie-talkies, DIY Bluetooth speakers, intercoms, portable radios, and custom audio enclosures. Its compact 40mm × 20mm form factor makes it ideal for tight-space builds and replacement projects.\"}}, {\"@type\": \"Question\", \"name\": \"Does the internal magnetic design reduce interference with other components?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The internal magnetic circuit design significantly minimises external magnetic field leakage, reducing electromagnetic interference with surrounding components — making it a safer, more reliable choice for compact multi-component electronic builds.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"40mm Full Range Speaker Driver 4Ω 5W HiFi Loudspeaker Unit\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/40mm-full-range-speaker-driver-4ohm-5w-hifi-loudspeaker-unit\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"Black","offer_id":44165686493271,"sku":"14:173#Black","price":11.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6008\/7383\/files\/S6498065a42ef4e89a82a8a9a37f83cb0Y.webp?v=1786726053","url":"https:\/\/axlcustomersupport.com\/products\/40mm-full-range-speaker-driver-4ohm-5w-hifi-loudspeaker-unit","provider":"Axl","version":"1.0","type":"link"}