{"product_id":"100w-tda7293-7294-digital-power-amplifier-board-diy-speaker-module","title":"100W TDA7293\/7294 Power Amplifier Board – DIY Speaker Module","description":"\n\u003ch2\u003e100W Digital Power Amplifier Board – TDA7293 \/ TDA7294 Single Channel DIY Module\u003c\/h2\u003e\n\u003cp\u003eBuild your own high-performance audio system with this \u003cstrong\u003e100W Digital Power Amplifier Board\u003c\/strong\u003e. Based on the industry-trusted \u003cstrong\u003eTDA7293 or TDA7294 chip\u003c\/strong\u003e (shipped randomly), this single-channel mono amplifier module is engineered for stability, clarity, and serious output power — perfect for DIY speaker projects and custom audio builds.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠️ Important Notes Before Ordering:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThis product ships as \u003cstrong\u003eloose\/unassembled parts\u003c\/strong\u003e — soldering and assembly are required.\u003c\/li\u003e\n  \u003cli\u003eThe chip supplied (TDA7293 or TDA7294) is selected \u003cstrong\u003erandomly\u003c\/strong\u003e per shipment.\u003c\/li\u003e\n  \u003cli\u003eNo circuit diagram or technical consultation is included; component labels are marked clearly on the PCB.\u003c\/li\u003e\n  \u003cli\u003eA \u003cstrong\u003e3-wire transformer (AC dual 12–32V)\u003c\/strong\u003e is required — do NOT use DC power or batteries.\u003c\/li\u003e\n  \u003cli\u003eYou \u003cstrong\u003emust attach a heatsink\u003c\/strong\u003e yourself before powering on.\u003c\/li\u003e\n  \u003cli\u003eParts are tested before shipping; free repairs are not provided.\u003c\/li\u003e\n  \u003cli\u003eProduct appearance and component sourcing may vary slightly between batches while maintaining equal or better quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOfficial Standard Circuit:\u003c\/strong\u003e Proven, stable, and reliable circuit design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Capacity Filtering:\u003c\/strong\u003e Large electrolytic capacitors rated at 50V \/ 2200µF for clean power delivery.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Supply Voltage:\u003c\/strong\u003e Dual 12–36V AC input; dual 32V recommended for best performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eImpressive Output:\u003c\/strong\u003e 85W rated (no distortion) with 100W peak power.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible with 100W+ Speakers:\u003c\/strong\u003e Drives speakers with 4–8 ohm impedance effortlessly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact PCB:\u003c\/strong\u003e 50 × 50 mm board — easy to integrate into custom enclosures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChip\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTDA7293 or TDA7294 (random)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 (Mono \/ Single Channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e85W (no distortion)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePeak Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDual 12–36V AC (Dual 32V recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeaker Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4–8 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter Capacitor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2200µF \/ 50V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePCB Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 × 50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Amplifier Board (unassembled kit, loose parts)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eExplore More DIY \u0026amp; Craft Essentials\u003c\/h3\u003e\n\u003cp\u003eLooking for storage solutions for your components? Check out our \u003ca href=\"\/products\/airtight-transparent-pet-storage-bottle-craft-beads-home-organization\"\u003eAirtight Transparent PET Storage Bottle | Beads \u0026amp; Crafts\u003c\/a\u003e. For other precision tools, browse our \u003ca href=\"\/products\/leather-hole-punch-tool-diy-stitching-punch-4-5-6mm\"\u003eLeather Hole Punch Tool | DIY Stitching Punch 4\/5\/6mm\u003c\/a\u003e and our \u003ca href=\"\/products\/stainless-steel-ceramic-trimming-tool-curved-skip-knife\"\u003eStainless Steel Ceramic Trimming Tool – Curved Skip Knife\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is the 100W amplifier board pre-assembled and ready to use?\u003c\/h4\u003e\n\u003cp\u003eA: No — this is a DIY kit sold as loose, unassembled components. You will need to solder all parts onto the PCB yourself. It is designed for hobbyists and electronics enthusiasts with soldering experience. Component locations are clearly marked on the board.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Which chip will I receive — TDA7293 or TDA7294?\u003c\/h4\u003e\n\u003cp\u003eA: The chip is selected randomly from available stock. Both the TDA7293 and TDA7294 are compatible with the same PCB layout and deliver equivalent performance at 85W rated \/ 100W peak output, so either chip will work correctly in your build.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What power supply do I need for this amplifier board?\u003c\/h4\u003e\n\u003cp\u003eA: You must use a 3-wire AC transformer with a dual (split) 12–36V output. A dual 32V toroidal transformer is recommended for optimal power output. Do NOT use DC power supplies or batteries — this board is designed exclusively for AC transformer input.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Do I need a heatsink?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — attaching a heatsink to the TDA7293\/7294 chip is mandatory before powering the board. Running the amplifier without proper thermal management will damage the chip. A heatsink is not included and must be sourced separately.\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\": \"Is the 100W amplifier board pre-assembled and ready to use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — this is a DIY kit sold as loose, unassembled components. 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