{"product_id":"audio-amplifier-board-bluetooth-5-0-mini-stereo-2x5w-compact-diy-amp","title":"Audio Amplifier Board Bluetooth 5.0 Mini Stereo 2x5W - Compact DIY Amp","description":"\u003cp\u003eIn this review the Audio Amplifier Board from Icstation is evaluated as a compact, budget-friendly option for DIY portable speakers and small stereo projects. The single biggest reason to buy is its updated \u003cstrong\u003eBluetooth 5.0\u003c\/strong\u003e connectivity combined with a straightforward power approach that runs well from a single 3.7V lithium cell, making it ideal when space and simplicity matter. It ships as a bare board without speakers, and it performs reliably out of the box for users who want wireless audio without complicated wiring.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth 5.0:\u003c\/strong\u003e Updated wireless module offers broader compatibility with phones and adapters and a practical transmission range of about 15 meters for home use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStereo 2x5W output:\u003c\/strong\u003e Delivers two channels of 5W each with anti-crack and subwoofer enhancement to improve perceived bass on small speaker builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery-friendly power:\u003c\/strong\u003e Designed to run on a 3.7V lithium battery (with protection) to reduce interference and noise for cleaner playback in portable projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto standby and reconnect:\u003c\/strong\u003e Ultra low standby consumption with automatic shutdown after 10 minutes and auto reconnection after power cycling to save battery life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB charging and 5V input:\u003c\/strong\u003e On-board USB port can charge the lithium cell and also serve as a 5V supply for bench testing or fixed installs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis board is well suited to hobbyists and makers building compact Bluetooth speakers, portable amplifiers using single 18650 or similar cells, and anyone adding wireless input to an existing small amplifier or stereo project. The small footprint and simple wiring make it good for enclosure experiments and quick prototypes.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for high-power home theater use, speaker systems needing more than a few watts per channel, or installers who require a finished product with enclosures and connectors included. Also, users who cannot provide a protected lithium battery or prefer regulated DC supplies should take care to follow the power recommendations.\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\u003eReliable Bluetooth pairing and clear audio with minimal noise when powered as recommended.\u003c\/li\u003e\n\u003cli\u003eCompact stereo output with anti-crack sound and subwoofer enhancement improves small speaker performance.\u003c\/li\u003e\n\u003cli\u003eLow standby draw and convenient USB charging make it convenient for portable builds.\u003c\/li\u003e\n\u003cli\u003eWorks well from a single 3.7V lithium cell such as an 18650 for simple battery-powered projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBoard is sold without speakers or enclosure, and some buyers reported mixed build quality on the PCB and components.\u003c\/li\u003e\n\u003cli\u003eMust avoid metal nearby and follow battery protection guidance to prevent interference or damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e2 x 5W stereo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBluetooth version\u003c\/td\u003e\n\u003ctd\u003eBluetooth 5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended speakers\u003c\/td\u003e\n\u003ctd\u003e2-8 ohm (3 ohm \u0026amp; 5W or 4 ohm \u0026amp; 10W recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003e3.7V lithium battery (with charging protection) or USB 5V input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandby behavior\u003c\/td\u003e\n\u003ctd\u003eAuto shut-down after 10 minutes; ultra low standby consumption\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB\u003c\/td\u003e\n\u003ctd\u003eOn-board USB port for charging and 5V power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Icstation Audio Amplifier Board is a practical choice for makers who want compact \u003cstrong\u003eBluetooth 5.0\u003c\/strong\u003e stereo audio in small DIY speakers or portable projects. It balances good sound, low standby consumption, and USB charging at a modest price, making it strong value for hobby builds so long as buyers follow the recommended 3.7V battery guidance and accept that they must provide speakers and an enclosure.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan I power this board with a USB power bank?\u003c\/strong\u003e\u003cbr\u003eIt is not recommended; the maker advises using a protected 3.7V lithium battery or a stable 5V supply via the USB port, as some power banks and unstable supplies can introduce noise or issues.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat speakers should I use?\u003c\/strong\u003e\u003cbr\u003eUse 2-8 ohm speakers; the board performs best with moderate loads such as 3 ohm at 5W or 4 ohm at 10W for headroom and clarity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it support automatic reconnection?\u003c\/strong\u003e\u003cbr\u003eYes, the board will auto-reconnect after power cycling and includes an auto shut-down after 10 minutes to conserve battery.\u003c\/p\u003e","brand":"Icstation","offers":[{"title":"Default Title","offer_id":46761511026907,"sku":"B0796TJ9FT","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61mDpE19FjL._SL1000.jpg?v=1747854762","url":"https:\/\/gearmusthave.com\/products\/audio-amplifier-board-bluetooth-5-0-mini-stereo-2x5w-compact-diy-amp","provider":"GearMustHave","version":"1.0","type":"link"}