{"product_id":"tda7492p-bluetooth-v2-1-audio-power-amplifier-board-2x25w-compact","title":"TDA7492P Bluetooth V2.1 Audio Power Amplifier Board 2x25W - Compact","description":"\u003cp\u003eOur review of the TDA7492P Bluetooth V2.1 Audio Power Amplifier Board finds it to be a practical, compact solution for hobbyists and DIY audio projects who need reliable stereo power without a large chassis. The board delivers a clear, muscular 25W+25W output per channel using the \u003cstrong\u003eTDA7492P chip\u003c\/strong\u003e and includes a Bluetooth V2.1 receiver plus an AUX interface for wired sources, making it easy to add wireless streaming to bookshelf speakers or custom enclosures. It is best for users comfortable wiring and mounting a bare board rather than those seeking a finished consumer product.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual 25W Outputs:\u003c\/strong\u003e Provides reliable stereo power of 25W+25W for small to medium speakers, suitable for most home desktop and bookshelf setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth V2.1 Receiver:\u003c\/strong\u003e Built-in wireless input lets you stream from phones and tablets without an external adapter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAUX Interface:\u003c\/strong\u003e A dedicated wired audio input gives a low-latency option for TVs, PCs, or line-level sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse-Connection Protection:\u003c\/strong\u003e The board includes protection to tolerate incorrect power polarity and can help extend component life during installation mistakes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality PCB and Components:\u003c\/strong\u003e Uses higher-grade electronic parts and a military-grade style PCB to improve durability and thermal stability in compact builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Speaker Compatibility:\u003c\/strong\u003e Supports 4, 6, 8 and 16 ohm speakers, with 8 ohm load being the optimal match for consistent performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis board is aimed at DIY audio builders, makers and installers who want a compact \u003cstrong\u003estereo amplifier\u003c\/strong\u003e board to add Bluetooth streaming and 2x25W power to custom speaker cabinets, desktop audio rigs, or small home theater projects. It is convenient for hobbyists who can provide their own power supply, enclosure and wiring.\u003c\/p\u003e\u003cp\u003eIt is not ideal for users expecting a finished commercial amplifier with knobs, remote or built-in speaker terminals; those buyers should look for a packaged amplifier or powered speaker solution instead. Also, people who need the latest Bluetooth codecs or higher-power outputs should consider other options.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompact size and 2x25W output make it simple to integrate into small projects.\u003c\/li\u003e\n\u003cli\u003eBluetooth V2.1 and AUX inputs cover both wireless and wired sources for flexibility.\u003c\/li\u003e\n\u003cli\u003eReverse-connection protection and quality PCB parts improve reliability during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBluetooth V2.1 is an older version and lacks modern codec support and range improvements.\u003c\/li\u003e\n\u003cli\u003eAs a bare board, it requires an external power supply and enclosure, which adds to project complexity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eHW-893\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier chip\u003c\/td\u003e\n\u003ctd\u003eTDA7492P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e2 x 25W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply voltage\u003c\/td\u003e\n\u003ctd\u003eDC 10-25V (2.1 socket)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio input\u003c\/td\u003e\n\u003ctd\u003eBluetooth receiver V2.1 and AUX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput impedance\u003c\/td\u003e\n\u003ctd\u003e4 \/ 6 \/ 8 \/ 16 ohm (8 ohm recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard size\u003c\/td\u003e\n\u003ctd\u003e72 x 48mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe TDA7492P Bluetooth V2.1 board is a strong value for DIYers who need a compact \u003cstrong\u003e2x25W amplifier\u003c\/strong\u003e with both Bluetooth and AUX inputs and durable PCB construction. It is especially useful for small speaker projects and desktop systems where a simple, reliable amp board is required, but those wanting a turnkey consumer amplifier or modern Bluetooth features should consider alternatives.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDoes this board need an external power supply?\u003c\/strong\u003e\u003cbr\u003eThe board requires a DC 10-25V power supply connected to the 2.1mm socket; the supply is not included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it drive 8 ohm bookshelf speakers?\u003c\/strong\u003e\u003cbr\u003eYes, it supports 8 ohm speakers and 8 ohm is the recommended load for balanced performance at 25W per channel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Bluetooth module modern and lossless?\u003c\/strong\u003e\u003cbr\u003eNo, the included Bluetooth is V2.1, which provides basic wireless streaming but lacks newer codecs and advanced range found in recent Bluetooth versions.\u003c\/p\u003e","brand":"Hilitand","offers":[{"title":"Default Title","offer_id":46769743397083,"sku":"B07Q34MVP9","price":20.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71wPWyUTviL._SL1001.jpg?v=1747854790","url":"https:\/\/gearmusthave.com\/products\/tda7492p-bluetooth-v2-1-audio-power-amplifier-board-2x25w-compact","provider":"GearMustHave","version":"1.0","type":"link"}