{"product_id":"stereo-bluetooth-power-amplifier-board-5v-24v-compact-diy-module","title":"Stereo Bluetooth Power Amplifier Board 5V-24V - Compact DIY Module","description":"\u003cp\u003eIn this review of the Stereo Bluetooth Power Amplifier Board XY-P40W the bottom line is simple: this module is for makers and small-speaker builders who need a compact, protected amplifier with direct speaker outputs. The reviewer found the module notably versatile because it runs from 5V to 24V, supports dual-channel output, and includes built-in protections that reduce the risk of damage during DIY builds. Its small footprint and included case make it practical for hobby projects and prototyping where easy Bluetooth streaming and reliable power handling matter most.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide voltage range:\u003c\/strong\u003e Operates from DC 5V to 24V so it adapts to USB power banks, 12V systems or higher-voltage DIY speaker projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStereo output:\u003c\/strong\u003e Dual-channel outputs let builders drive two speakers directly for a proper stereo image without an external amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in protections:\u003c\/strong\u003e Reverse-connection, short-circuit and self-recovery overheat protection help protect the board during experimentation and rough handling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable output power:\u003c\/strong\u003e Power scales with supply voltage, offering 20W, 30W or up to 40W per channel possibilities depending on the voltage and speaker impedance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnob adjustment and case:\u003c\/strong\u003e Physical volume control and a supplied case simplify installation and user control in finished DIY enclosures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe board is ideal for hobbyists building portable Bluetooth speakers, small home audio projects, or people who want a compact amplifier to add wireless audio to existing passive speakers. Its broad voltage compatibility makes it useful for projects powered from 5V USB sources up to 24V battery packs.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for audiophiles seeking high-end fidelity or for large venue sound where much higher continuous power and advanced cooling are required. Beginners who do not want any assembly or electrical work may prefer a finished powered speaker instead.\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\u003eFlexible DC 5V-24V operation lets the same module be used in many power environments.\u003c\/li\u003e\n\u003cli\u003eDirect speaker outputs and dual-channel design make it simple to create stereo systems without extra amplification.\u003c\/li\u003e\n\u003cli\u003eComprehensive protection features reduce the chance of damage during DIY use or accidental wiring mistakes.\u003c\/li\u003e\n\u003cli\u003eThe included case and knob control speed up assembly and provide a cleaner finished look.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot designed as a hi-fi reference amp; sound quality depends on speaker choice and power supply stability.\u003c\/li\u003e\n\u003cli\u003eOutput power depends on supply voltage and speaker impedance, so achieving maximum rated watts requires appropriate voltage and drivers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct name\u003c\/td\u003e\n\u003ctd\u003eXY-P40W Stereo Bluetooth Power Amplifier Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eXY-P40W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWork voltage\u003c\/td\u003e\n\u003ctd\u003eDC 5V - 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication distance\u003c\/td\u003e\n\u003ctd\u003e15 meter (max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003eDual channel (stereo)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e20W2 at 12V 4 ohm; 30W2 at 16V 4 ohm; 30W2 at 21V 8 ohm; up to 40W2 at 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtections\u003c\/td\u003e\n\u003ctd\u003eReverse connection, short circuit, self-recovery overheat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe XY-P40W Stereo Bluetooth Power Amplifier Board is a practical, value-focused choice for DIYers who need a compact Bluetooth receiver with direct speaker drive and solid protection features. It delivers flexible power across a wide voltage range and simplifies small speaker projects, making it a sensible buy for hobby builds and home audio tinkering.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat voltages will this board run from?\u003c\/strong\u003e\u003cbr\u003eThe board supports DC 5V to 24V, so it works with USB power banks up to 24V battery packs when wired correctly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it drive passive speakers directly?\u003c\/strong\u003e\u003cbr\u003eYes, it has built-in amplifier outputs for dual speakers; achievable wattage depends on supply voltage and speaker impedance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module protect itself from wiring mistakes?\u003c\/strong\u003e\u003cbr\u003eYes, it includes reverse-connection protection, short-circuit protection and a self-recovery overheat feature to reduce damage risk.\u003c\/p\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":46754618736859,"sku":"B0CPCZ6Y3C","price":12.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51BZzrRBRyL._SL1000.jpg?v=1747854797","url":"https:\/\/gearmusthave.com\/products\/stereo-bluetooth-power-amplifier-board-5v-24v-compact-diy-module","provider":"GearMustHave","version":"1.0","type":"link"}