{"product_id":"tpa3118-30w-30w-bluetooth-audio-amplifier-board-compact-power","title":"TPA3118 30W+30W Bluetooth Audio Amplifier Board - Compact Power","description":"\u003cp\u003eIn this review the TPA3118 8V~26V DC Audio Amplifier Board is evaluated as a compact, budget-friendly way to add Bluetooth and auxiliary input to passive speakers. The board is aimed at hobbyists and DIY speaker builders who need a reliable \u003cstrong\u003eBluetooth audio amplifier\u003c\/strong\u003e that delivers noticeable output without complex wiring. The single biggest reason to buy is the combination of class-D digital amplification and auto Bluetooth pairing on power up, which together make it easy to convert ordinary speakers into a Bluetooth-enabled system.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Bluetooth pairing:\u003c\/strong\u003e The board enters pairing mode on power up with the device name Xpecial Audio, making initial setup quick for DIY installs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible audio inputs:\u003c\/strong\u003e Supports Bluetooth streaming and a 3.5mm auxiliary jack so it works with phones, players, and older audio sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass-D digital amplification:\u003c\/strong\u003e Provides higher overload capacity than analog amps and reduces crossover and transient intermodulation distortion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide voltage range:\u003c\/strong\u003e Operates from 8V to 26V DC, which lets builders power it from a variety of battery packs or bench supplies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker compatibility:\u003c\/strong\u003e Works with 4, 6 and 8 ohm speakers so typical bookshelf or custom drivers can be used without worry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact footprint:\u003c\/strong\u003e The 71mm x 52mm size fits neatly inside many small enclosures for portable or compact speaker projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe board is well suited to DIY audio enthusiasts and makers who want to repurpose passive speakers into a Bluetooth system or add a powered stage to a small enclosure. Its auto pairing and 3.5mm input simplify integration into projects where easy wireless playback is required.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for audiophiles seeking high-end fidelity or systems that require advanced tone controls and protection features; this is a straightforward power amplifier board rather than a full-featured receiver.\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\u003eDelivers strong output for small to medium speakers with a combined 30W+30W channel capability.\u003c\/li\u003e\n\u003cli\u003eBluetooth auto pairing and auxiliary input give flexible connectivity for modern and legacy sources.\u003c\/li\u003e\n\u003cli\u003eClass-D design reduces distortion issues common to analog designs and handles speaker load variation well.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSound quality reports are mixed among users, so expectations should be realistic for a compact, budget board.\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\u003eTPA3118 audio amplifier board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e30W + 30W (stated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e8V~26V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio Inputs\u003c\/td\u003e\n\u003ctd\u003eBluetooth and 3.5mm auxiliary jack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeaker Impedance\u003c\/td\u003e\n\u003ctd\u003e4 ohm, 6 ohm, 8 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard Size\u003c\/td\u003e\n\u003ctd\u003e71mm x 52mm (2.79 in x 2.04 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe TPA3118 board is a practical value choice for builders who need a compact \u003cstrong\u003eBluetooth amplifier\u003c\/strong\u003e with decent power and simple setup. It is especially good for DIY Bluetooth speaker projects where ease of installation and flexible power options matter more than premium audio refinement.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this board support Bluetooth pairing automatically?\u003c\/strong\u003e\u003cbr\u003eYes. It automatically enters Bluetooth pairing mode at power on and appears as Xpecial Audio.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat speaker impedances are supported?\u003c\/strong\u003e\u003cbr\u003eThe amplifier is compatible with 4 ohm, 6 ohm, and 8 ohm speakers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat power supply does it need?\u003c\/strong\u003e\u003cbr\u003eIt requires a DC supply between 8V and 26V, allowing use with various battery packs or bench supplies.\u003c\/p\u003e","brand":"YWBL-WH","offers":[{"title":"Default Title","offer_id":46770536513755,"sku":"B07SV1QK2X","price":5.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61YkGIy8D1L._SL1001.jpg?v=1747854992","url":"https:\/\/gearmusthave.com\/products\/tpa3118-30w-30w-bluetooth-audio-amplifier-board-compact-power","provider":"GearMustHave","version":"1.0","type":"link"}