{"product_id":"tda7492-50w-x2-digital-stereo-amplifier-module-bluetooth-v4-0","title":"TDA7492 50W x2 Digital Stereo Amplifier Module - Bluetooth V4.0","description":"\u003cp\u003eIn this review the TDA7492 50W x2 Digital Channel Amplifier Module is evaluated as a hands-on option for DIY audio builders and hobbyists who want to turn passive speakers into Bluetooth-enabled systems. The bottom line: this board pairs a reliable \u003cstrong\u003eTDA7492\u003c\/strong\u003e power stage with an NE5532 preamp and CSR8635 Bluetooth V4.0 to deliver clear, punchy stereo output from a compact module, and it is best for those who can supply a suitable DC source and do basic wiring. It is not a finished enclosure product, but it does offer a solid path to higher output without analog crossover distortion.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital amplification:\u003c\/strong\u003e The TDA7492 chip delivers a higher overload capacity than typical analog amps and avoids crossover and transient intermodulation distortion for cleaner peaks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth V4.0 input:\u003c\/strong\u003e The CSR8635 receiver provides convenient wireless audio input so existing speakers can be converted into Bluetooth speakers without extra gear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide voltage range:\u003c\/strong\u003e Accepts DC 8V to 25V input, offering flexibility for 12V and 24V systems and a variety of power supply choices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNE5532 preamp:\u003c\/strong\u003e The onboard NE5532 improves input stage fidelity so the amplified sound retains detail and musicality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker compatibility:\u003c\/strong\u003e Supports 4, 6 and 8 ohm speakers, making it suitable for many bookshelf and compact speaker drivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicrophone included:\u003c\/strong\u003e The module includes a microphone input for basic voice pickup or hands-free use when paired via Bluetooth.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe module is ideal for DIY enthusiasts, electronics hobbyists and small workshop projects where the goal is to upgrade passive speakers or build a compact Bluetooth-enabled amplifier. It is especially useful when a modest but robust 50W per channel output is needed without adding complicated crossover networks.\u003c\/p\u003e\u003cp\u003eIt is less suitable for users who expect a finished, plug-and-play stereo amplifier with case, front panel controls and certified safety approvals; those buyers should look for a finished integrated amp or powered speakers. Also, if you need multi-room network features or high-resolution codecs beyond standard Bluetooth audio, consider alternatives.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigh output capability per channel with digital design that resists crossover distortion.\u003c\/li\u003e\n\u003cli\u003eBuilt-in Bluetooth V4.0 receiver makes wireless pairing simple for phones and tablets.\u003c\/li\u003e\n\u003cli\u003eFlexible DC input range supports common power supplies and battery systems.\u003c\/li\u003e\n\u003cli\u003eNE5532 preamp improves sound clarity compared with bare power stage modules.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eModule form factor requires user enclosure and wiring; not a consumer-ready finished amplifier.\u003c\/li\u003e\n\u003cli\u003eNo advanced wireless codecs or network streaming features beyond standard Bluetooth audio.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eChip\u003c\/td\u003e\n\u003ctd\u003eTDA7492\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower output\u003c\/td\u003e\n\u003ctd\u003e50W + 50W per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBluetooth\u003c\/td\u003e\n\u003ctd\u003eCSR8635 Bluetooth V4.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-amp\u003c\/td\u003e\n\u003ctd\u003eNE5532\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply voltage\u003c\/td\u003e\n\u003ctd\u003eDC 8V to 25V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeaker impedance\u003c\/td\u003e\n\u003ctd\u003e4, 6, 8 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtras\u003c\/td\u003e\n\u003ctd\u003eMicrophone input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe TDA7492 50W x2 module is a pragmatic choice for hobbyists who want a compact, high-output amplifier board with Bluetooth convenience and improved preamp fidelity. It represents strong value when you factor in the NE5532 front end and CSR8635 receiver, but it requires basic electronics skills and an external enclosure to reach its full potential.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCan this board drive bookshelf speakers?\u003c\/strong\u003e\u003cbr\u003eYes, the board supports 4, 6 and 8 ohm speakers and can drive typical bookshelf speakers when paired with a suitable power supply.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat power supply does it need?\u003c\/strong\u003e\u003cbr\u003eThe board accepts DC 8V to 25V; a stable 12V or 24V supply of sufficient current is recommended depending on speaker load and desired volume.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it include Bluetooth and a microphone?\u003c\/strong\u003e\u003cbr\u003eYes, the module includes a CSR8635 Bluetooth V4.0 receiver and a microphone input for basic hands-free use.\u003c\/p\u003e","brand":"Walfront","offers":[{"title":"Default Title","offer_id":46760058061019,"sku":"B075QZLRD7","price":17.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/615og8Gx-sL._SL1001.jpg?v=1747854393","url":"https:\/\/gearmusthave.com\/products\/tda7492-50w-x2-digital-stereo-amplifier-module-bluetooth-v4-0","provider":"GearMustHave","version":"1.0","type":"link"}