{"product_id":"bluetooth-amplifier-board-2-1-15w-x2-30w-app-control-tone-eq","title":"Bluetooth Amplifier Board 2.1, 15W x2 +30W - App Control \u0026 Tone EQ","description":"\u003cp\u003eIn this review of the Bluetooth Amplifier Board 2.1, the bottom line is simple: this board is for DIY speaker builders who want flexible power, tone control and modern connectivity without fuss. The reviewer found the standout advantage is the mobile APP support that goes beyond basic Bluetooth pairing, letting users tweak sound, rename the device and manage prompt tones, while the board's wide 9-24V compatibility and included DC adapter plug make it easy to integrate into a variety of projects.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eAPP Control:\u003c\/strong\u003e The companion app allows adjusting sound effects, changing the Bluetooth name and password, and toggling prompt tones for a tailored listening experience.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e2.1 Channel Output:\u003c\/strong\u003e Delivers 15W per stereo channel plus a 30W sub channel so small speaker builds benefit from defined mids and fuller bass.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eTreble and Bass Adjustment:\u003c\/strong\u003e Physical knobs provide quick, hands-on tone shaping when fine tuning onboard EQ is preferred over app control.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eInput Memory:\u003c\/strong\u003e The board remembers the last input (Bluetooth or AUX), so the unit resumes in the preferred mode after power cycles.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Works from DC 9V to 24V, giving flexibility to power it from a variety of adapters and battery solutions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHigh Compatibility:\u003c\/strong\u003e Standard 5.5x2.1mm DC plugs are supported and a DC conversion plug is included to reduce setup friction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis board is aimed at hobbyists and DIY speaker builders who want an affordable way to add Bluetooth streaming and adjustable tonal control to bookshelf or desktop speaker projects. The mix of app and physical controls suits people who like to experiment with sound signatures or need to rename or secure their Bluetooth unit.\u003c\/p\u003e\n\u003cp\u003eIt is less suited for audiophiles demanding high-end discrete component amplification or installers who require rack-mount hardware and professional connections; the board is optimized for compact consumer and DIY use rather than pro studio or high-power PA 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\u003eApp functionality gives detailed control over sound effects, Bluetooth name and prompt tones.\u003c\/li\u003e\n \u003cli\u003eClear 2.1 channel configuration (15W+15W+30W) provides usable power for small speaker enclosures.\u003c\/li\u003e\n \u003cli\u003ePhysical treble and bass knobs offer immediate tonal adjustment without opening the app.\u003c\/li\u003e\n \u003cli\u003eWide 9-24V input and included DC conversion plug simplify power options for DIY builds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eNot intended for high-end pro audio installations; performance is tuned for consumer DIY projects.\u003c\/li\u003e\n \u003cli\u003eDocumentation for the app and advanced settings may require experimentation to fully master.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGugxiom\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e2.1 (15W + 15W + 30W)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003eDC 9V to 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003eBluetooth and AUX\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eControls\u003c\/td\u003e\n\u003ctd\u003eTreble and Bass knobs plus app digital controls\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003e5.5x2.1mm DC adapters; conversion plug included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor DIYers building compact speakers who want streaming, on-board tone shaping and flexible power options, this Bluetooth Amplifier Board delivers strong value. The APP plus physical EQ give both deep and immediate control, and the 2.1 output is a practical balance of clarity and bass for small enclosures, making it a sensible choice for hobby projects.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the board work with a 12V car battery?\u003c\/strong\u003e\u003cbr\u003eYes. The board supports DC 9V to 24V, so a 12V supply such as a car battery or vehicle power source is compatible when connected via the correct adapter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the Bluetooth name and password be changed?\u003c\/strong\u003e\u003cbr\u003eYes. The developed app lets you set the Bluetooth name and password for the amplifier board for easier identification and basic access control.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it remember AUX if that was the last input?\u003c\/strong\u003e\u003cbr\u003eYes. The board includes an input memory function so it returns to the AUX input if that was the last mode used.\u003c\/p\u003e","brand":"Gugxiom","offers":[{"title":"Default Title","offer_id":46779639234779,"sku":"B0D8J5LV8L","price":16.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/617PhMYbJWL._SL1500.jpg?v=1747854284","url":"https:\/\/gearmusthave.com\/products\/bluetooth-amplifier-board-2-1-15w-x2-30w-app-control-tone-eq","provider":"GearMustHave","version":"1.0","type":"link"}