{"product_id":"5v-bluetooth-amplifier-module-5w-mono-class-d-compact-wireless-amp","title":"5V Bluetooth Amplifier Module 5W Mono Class D - Compact Wireless Amp","description":"\u003cp\u003eOur review of the 5V Bluetooth Amplifier Module 5W Mono Class D looks at who benefits most from a tiny, finished board that turns a battery or 5V supply into a wireless lossless music player. For hobbyists and compact audio projects the single biggest reason to buy is the module's blend of simple power needs (3.7V-5V) and a Class D amp design that delivers up to 5W into a 4 ohm speaker, allowing clear playback without a bulky power supply. The module is ideal where space is limited but better-than-phone audio is needed.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5W mono Class D output:\u003c\/strong\u003e Provides efficient, compact amplification suited to single-driver speakers and small enclosures for loud, clean sound.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide working voltage:\u003c\/strong\u003e Runs from 3.7V to 5V so it can be powered by common single-cell Li-ion batteries or a 5V USB supply for flexible deployments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLossless music playback:\u003c\/strong\u003e Supports lossless music formats to preserve detail when streaming over Bluetooth to the board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall finished board:\u003c\/strong\u003e The compact 31.521.510mm module fits into tight builds and DIY projects without additional assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory standby function:\u003c\/strong\u003e Retains pairing or operating state so it resumes quickly after brief power interruptions or standby.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust operating range:\u003c\/strong\u003e Designed to work between -20C and 85C and in 5% to 95% RH conditions for reliable operation in varied environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis board is aimed at electronic hobbyists, makers and lightweight audio product developers who need a compact, powered Bluetooth amplifier for prototypes, portable speakers, or embedded systems. Its low-voltage requirement and mono output make it an excellent choice for single-speaker projects and battery-powered builds.\u003c\/p\u003e\n\u003cp\u003eThose who need stereo amplification, high-power home theater sound, or industrial-grade audio with advanced connectivity should look elsewhere; this module is optimized for simple mono setups and small enclosures rather than multi-channel installations.\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\u003eCompact finished board saves time and simplifies integration into DIY projects.\u003c\/li\u003e\n\u003cli\u003eLow-voltage operation (3.7V-5V) allows battery or USB 5V power options for portable use.\u003c\/li\u003e\n\u003cli\u003eClass D efficiency keeps heat and power draw down while delivering up to 5W into 4 ohm loads.\u003c\/li\u003e\n\u003cli\u003eMemory standby makes the module convenient for intermittent use and battery-powered devices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMono output limits use in stereo systems or multi-driver speaker designs.\u003c\/li\u003e\n\u003cli\u003eOutput power is modest (3W-5W), so it is not suitable for large rooms or high SPL applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003ezad-c1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e3W~5W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput impedance\u003c\/td\u003e\n\u003ctd\u003e4 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking voltage\u003c\/td\u003e\n\u003ctd\u003eDC 3.7V-5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking current\u003c\/td\u003e\n\u003ctd\u003e1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel\u003c\/td\u003e\n\u003ctd\u003eMono\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule size\u003c\/td\u003e\n\u003ctd\u003e31.521.510mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 5V Bluetooth Amplifier Module is a practical, low-cost component for hobbyist audio projects and small portable speakers. It offers efficient Class D amplification, flexible 3.7V-5V powering, and a compact finished board that saves assembly time. Pick this module if you need a reliable mono Bluetooth amp for compact builds; opt for a different solution if you require stereo channels or higher output power for larger spaces.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this module run from a single-cell Li-ion battery?\u003c\/strong\u003e\u003cbr\u003eYes, the working voltage range of 3.7V-5V means a single-cell Li-ion is suitable, provided the supply can deliver the required current.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat speaker impedance should I use?\u003c\/strong\u003e\u003cbr\u003eUse a 4 ohm speaker to match the module's specified output impedance for optimal power transfer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it support stereo audio?\u003c\/strong\u003e\u003cbr\u003eNo, this is a mono Class D amplifier module intended for single-channel audio applications.\u003c\/p\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":46751254249691,"sku":"B0CJ7RPXYR","price":7.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/612XyGdvhDL._SL1000.jpg?v=1747854768","url":"https:\/\/gearmusthave.com\/products\/5v-bluetooth-amplifier-module-5w-mono-class-d-compact-wireless-amp","provider":"GearMustHave","version":"1.0","type":"link"}