{"product_id":"100w-class-d-stereo-audio-amplifier-board-50w-50w-dc-5-26v-diy","title":"100W Class D Stereo Amplifier Board 50W+50W DC 5-26V DIY Audio","description":"\u003ch2\u003e100W DIY Digital Stereo Audio Amplifier Board – 50W+50W, Class D, DC 5-26V\u003c\/h2\u003e\n\u003cp\u003eUpgrade your DIY audio projects with this compact yet powerful \u003cstrong\u003eClass D Digital Stereo Audio Amplifier Board\u003c\/strong\u003e. Delivering an impressive \u003cstrong\u003e50W + 50W (100W total)\u003c\/strong\u003e output across two channels, this board is engineered for high efficiency, minimal heat generation, and crystal-clear sound reproduction — perfect for custom speaker builds, home audio setups, and electronics enthusiasts.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmplifier Type:\u003c\/strong\u003e Class D (Digital)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTotal Output Power:\u003c\/strong\u003e 100W (50W + 50W, 2.0 stereo channels)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e DC 5V – 26V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Current:\u003c\/strong\u003e 2A – 4A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Impedance:\u003c\/strong\u003e 4 – 8 Ohms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSignal-to-Noise Ratio:\u003c\/strong\u003e 100dB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoard Dimensions:\u003c\/strong\u003e 50 × 45 × 12 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic + Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e 1 Set\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose This Amplifier Board?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eHigh Efficiency Class D Design\u003c\/strong\u003e — Converts power with minimal waste heat, keeping your build cool and energy-efficient.\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eWide Voltage Range\u003c\/strong\u003e — Compatible with DC 5V to 26V power supplies for maximum flexibility in your project.\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eImpressive 100dB SNR\u003c\/strong\u003e — Enjoy clean, low-noise stereo audio output.\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eUltra-Compact Form Factor\u003c\/strong\u003e — At just 50×45×12mm, it fits neatly into enclosures, custom speaker cabinets, or electronics projects.\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eDIY-Ready\u003c\/strong\u003e — Ideal for hobbyists, makers, and electronics builders looking for a reliable amplifier module.\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eBroad Speaker Compatibility\u003c\/strong\u003e — Works with 4–8 Ohm speaker loads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDIY Bluetooth speaker builds\u003c\/li\u003e\n  \u003cli\u003eCustom home audio systems\u003c\/li\u003e\n  \u003cli\u003eElectronics and robotics projects\u003c\/li\u003e\n  \u003cli\u003eReplacement amp boards for existing setups\u003c\/li\u003e\n  \u003cli\u003eMaker spaces and electronics workshops\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eColors may vary slightly from images due to monitor brightness and lighting conditions. Please refer to the actual product received.\u003c\/li\u003e\n  \u003cli\u003eAllow for slight manual measurement deviations in the listed dimensions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou Might Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10cm-wireless-led-motion-sensor-night-light-type-c-rechargeable-cabinet-wardrobe-lamp-for-staircase-backlight-kitchen-lighting\"\u003e10CM Wireless LED Motion Sensor Night Light – Type-C Rechargeable Lamp\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-wooden-handle-nylon-bristle-paint-brush-for-oil-painting-dusting-and-cleaning-unrechargeable-hand-tool-set-without-batt-2\"\u003e10Pcs Wooden Handle Nylon Bristle Paint Brush Set – Handy Tool Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.epa.gov\/recycle\/used-lithium-ion-batteries\" target=\"_blank\" rel=\"noopener\"\u003eEPA guidance on lithium-ion battery handling\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What power supply do I need for this Class D amplifier board?\u003c\/h4\u003e\n\u003cp\u003eA: This digital stereo amplifier board accepts a wide input voltage range of DC 5V to 26V with an input current of 2A to 4A. A regulated DC power supply within this range is recommended. For maximum power output near 50W per channel, use a supply closer to 24V–26V at sufficient current capacity.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What speaker impedance is compatible with this amplifier board?\u003c\/h4\u003e\n\u003cp\u003eA: This board is compatible with speakers rated at 4 to 8 Ohms impedance, which covers the vast majority of standard home audio and DIY speaker builds. Always ensure your speakers match the impedance specifications to protect both the board and the speakers.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this amplifier board suitable for beginners in electronics DIY projects?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! While some basic understanding of electronics wiring is helpful, this compact Class D amplifier board is designed to be straightforward to integrate into DIY audio builds. Its small 50×45×12mm footprint and broad voltage compatibility make it a great starting point for hobbyists and makers building custom speaker systems.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What power supply do I need for this Class D amplifier board?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This digital stereo amplifier board accepts a wide input voltage range of DC 5V to 26V with an input current of 2A to 4A. A regulated DC power supply within this range is recommended. 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