{"product_id":"50w-50w-bluetooth-5-0-amplifier-board-compact-100w-dual-channel","title":"50W+50W Bluetooth 5.0 Amplifier Board - Compact 100W Dual Channel","description":"\u003cp\u003eIn this review of the 50W+50W Bluetooth 5.0 Amplifier Board the bottom line is simple: this compact amp is for hobbyists and small-room audio upgrades who want high output and easy wireless pairing without fuss. It pairs Bluetooth 5.0 quickly and reliably, and its TPA3116D2-based ZK-502C HIFI chip delivers surprisingly clean power for the size. Installation is straightforward for anyone comfortable with basic wiring, and built-in protections help the board run long sessions with low distortion.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh output per channel:\u003c\/strong\u003e 50W+50W output capability provides ample volume for small to medium rooms when paired with appropriate speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHIFI chip with low distortion:\u003c\/strong\u003e ZK-502C using TPA3116D2 keeps THD under 0.1% in typical operation, producing clear sound even at higher volumes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible power input:\u003c\/strong\u003e Works from DC 9V to 24V so you can run it from common 12V or 19V supplies and choose higher voltage for more headroom.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual input options:\u003c\/strong\u003e Wireless Bluetooth 5.0 or a wired AUX\/line-in lets you connect phones quickly or hardwire a source for stable playback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtective features:\u003c\/strong\u003e Built-in over-voltage, under-voltage, over-heat and short-circuit protections improve reliability during prolonged use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact build and terminals:\u003c\/strong\u003e Small heat sink and sturdy speaker terminals make the board easy to integrate into DIY enclosures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis amp is aimed at DIY audio builders, desktop stereo upgrades, and small home theater setups that need a compact, powerful amplifier with modern Bluetooth connectivity. It suits users who want to replace a weak amp or power bookshelf speakers with a simple, serviceable board that pairs to phones without passwords.\u003c\/p\u003e\n\u003cp\u003eIt may not be ideal for audiophiles seeking tube warmth or multi-room systems needing network streaming; also buyers who require official packaged consumer electronics with branding and accessories should look at finished amp products rather than a bare board that needs a power supply and wiring.\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\u003eImpressive power for its size, delivering loud, clean output when used with suitable speakers.\u003c\/li\u003e\n\u003cli\u003eBluetooth 5.0 pairing is fast and reliable, providing wireless convenience with minimal setup.\u003c\/li\u003e\n\u003cli\u003eRobust build details like solid speaker terminals and good soldering make installation straightforward.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSold as a board so you must provide a compatible power adapter and do basic wiring; not a plug-and-play boxed amp.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel \/ Chip\u003c\/td\u003e\n\u003ctd\u003eZK-502C with TPA3116D2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower output\u003c\/td\u003e\n\u003ctd\u003e50W + 50W (dual channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking voltage\u003c\/td\u003e\n\u003ctd\u003eDC 9V - 24V (recommended above 12V\/3A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower adapter option\u003c\/td\u003e\n\u003ctd\u003e19V 4.74A compatible adapter available\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003eBluetooth 5.0 and AUX \/ line-in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection features\u003c\/td\u003e\n\u003ctd\u003eOver-voltage, under-voltage, over-heat, short-circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication distance\u003c\/td\u003e\n\u003ctd\u003eUp to 15 meter (without obstacles)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 50W+50W Bluetooth 5.0 Amplifier Board is a practical, high-value option for DIYers and small-room audio users who want robust wireless connectivity and strong, low-distortion power in a compact package. Provided you can supply a proper DC adapter and do basic installation, it delivers clean sound, solid build quality, and protective features that make it a smart upgrade for speakers in the 30W to 100W range.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat power supply does this board need?\u003c\/strong\u003e\u003cbr\u003eUse a DC supply between 9V and 24V; a 12V or 19V adapter above 3A is recommended for reliable 50W+50W output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I connect a phone wirelessly?\u003c\/strong\u003e\u003cbr\u003eYes, Bluetooth 5.0 provides quick, password-free pairing for phones within about 15 m without obstacles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it work with my speakers?\u003c\/strong\u003e\u003cbr\u003eIt pairs well with 4 to 8 ohm speakers rated roughly 20W to 100W; output depends on speaker impedance and supply voltage\/current.\u003c\/p\u003e","brand":"DAMGOO","offers":[{"title":"Default Title","offer_id":46775028383963,"sku":"B07XBF9GXW","price":15.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71W3izXGblL._SL1500.jpg?v=1747854396","url":"https:\/\/gearmusthave.com\/products\/50w-50w-bluetooth-5-0-amplifier-board-compact-100w-dual-channel","provider":"GearMustHave","version":"1.0","type":"link"}