{"product_id":"bluetooth-audio-receiver-power-amplifier-board-25w-compact-stereo","title":"Bluetooth Audio Receiver Power Amplifier Board 25W - Compact Stereo","description":"\u003cp\u003eIn this review the Bluetooth Audio Receiver Power Amplifier Board is evaluated as a compact, easy-to-integrate amp for DIY home and portable speaker projects. The single biggest reason to buy is its combination of Bluetooth 4.0 streaming using the CSR8635 chip and a 25W TDA7492P amplifier on a lightweight 38g board that runs from 8V to 25V DC, which makes it ready for 12V and 24V systems without extra converters. It is best for hobbyists and installers who need a simple wireless input and decent power for small to medium speakers.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth 4.0 Connectivity:\u003c\/strong\u003e The CSR8635 chip provides broad compatibility for stereo input from phones, tablets, and other Bluetooth devices so streaming is straightforward.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto Pairing:\u003c\/strong\u003e The board automatically enters pairing mode at power on and appears as SANWU Audio, removing the need for manual configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25W Output Power:\u003c\/strong\u003e The TDA7492P amplifier delivers clear, robust sound suitable for home audio and portable speaker builds that need respectable volume and headroom.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Operation from 8V to 25V DC makes the board adaptable to common 12V and 24V systems without extra power hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Gain:\u003c\/strong\u003e A gain switch lets users fine tune output level to match speaker sensitivity and avoid clipping or distortion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Weighing only 38g, the small footprint is easy to fit inside enclosures or retrofit into existing speaker cabinets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe board is ideal for electronics hobbyists, DIY speaker builders, and small-scale installers who want a low-cost way to add Bluetooth streaming and a 25W amplifier to home or portable speakers. Its automatic pairing and wide voltage tolerance make it particularly useful for projects that will run on 12V or 24V power supplies.\u003c\/p\u003e\n\u003cp\u003eThose seeking hi-fi reference sound or multi-channel home theater processing should look elsewhere; this board is designed for straightforward stereo use and integration rather than advanced signal processing or high-end audiophile systems.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSimple Bluetooth 4.0 pairing with CSR8635 provides broad device support and reliable wireless input.\u003c\/li\u003e\n\u003cli\u003e25W TDA7492P amplifier gives energetic, clear output for small to medium speakers.\u003c\/li\u003e\n\u003cli\u003eCompact, lightweight design and wide 8V-25V input makes installation flexible across many projects.\u003c\/li\u003e\n\u003cli\u003eAdjustable gain switch helps match output to a variety of speaker impedances from 4 to 16 ohms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNo built-in advanced controls like tone or DSP, so sound tuning is limited to gain and external speakers' characteristics.\u003c\/li\u003e\n\u003cli\u003eNot intended for high-end audiophile use or multi-channel setups where separate processing is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBluetooth Chip\u003c\/td\u003e\n\u003ctd\u003eCSR8635 (Bluetooth 4.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier IC\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\u003e25W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e8V - 25V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeaker Impedance\u003c\/td\u003e\n\u003ctd\u003e4, 6, 8, 16 ohm compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e38g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThis Bluetooth amplifier board is a practical, cost-effective solution for hobbyists and installers who need wireless streaming plus a 25W amplifier in a compact package. It offers reliable auto-pairing, adjustable gain, and wide voltage compatibility, which together make it a good value for straightforward stereo speaker projects that do not require advanced DSP or multi-channel features.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I pair the board with a phone?\u003c\/strong\u003e\u003cbr\u003eThe board auto-enters pairing mode at power on and appears as SANWU Audio; select that device on your phone to connect.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat voltages will this board run on?\u003c\/strong\u003e\u003cbr\u003eIt runs from 8V to 25V DC, making it suitable for common 12V and 24V power systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat speaker impedances are supported?\u003c\/strong\u003e\u003cbr\u003eIt is designed to drive speakers with impedances of 4, 6, 8, and 16 ohm.\u003c\/p\u003e","brand":"Respicefinem","offers":[{"title":"Default Title","offer_id":46756690034907,"sku":"B0DKF8G538","price":16.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71aSKScpGhL._AC_SL1500.jpg?v=1747854800","url":"https:\/\/gearmusthave.com\/products\/bluetooth-audio-receiver-power-amplifier-board-25w-compact-stereo","provider":"GearMustHave","version":"1.0","type":"link"}