{"product_id":"s350hs-tpa3251-bluetooth-power-amplifier-board-2-1-channel-highpower","title":"S350HS TPA3251 Bluetooth Power Amplifier Board 2.1 Channel - HighPower","description":"\u003cp\u003eIn this review of the S350HS TPA3251 Bluetooth Power Amplifier Board, the bottom line is clear: it is for DIY audio builders and compact home theater enthusiasts who want a highpower 2.1 amplifier with flexible inputs and robust protection. The reviewer found its combination of two TPA3251 amplifier chips, multiple input methods including Bluetooth and USB flash playback, and a wide DC input range make it a practical choice for custom subwoofer and satellite speaker projects. The board's safety features and an app for Bluetooth setup further strengthen its appeal for hobbyists who value control and reliability.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHighpower TPA3251 chipset:\u003c\/strong\u003e Dual TPA3251 amplifiers deliver powerful stereo and subwoofer output for immersive sound in small to medium rooms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide voltage range:\u003c\/strong\u003e The board accepts DC 12-38V, giving flexibility to use different power supplies for mobile or fixed installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple input options:\u003c\/strong\u003e Bluetooth, 3.5mm AUX, USB sound card, and FAT32 USB flash playback let the board connect to phones, TVs, laptops, and standalone storage devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApp control for Bluetooth settings:\u003c\/strong\u003e The companion application allows customization of Bluetooth name and password to simplify pairing in multidevice setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgraded DC connector:\u003c\/strong\u003e A goldplated 5.5x2.5mm high current shielded socket reduces sparking at connection and improves reliability under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection mechanisms:\u003c\/strong\u003e Builtin shortcircuit, overcurrent, and overheating protection report faults to the processor to help prevent damage during heavy usage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis amplifier board is ideal for hobbyists building a compact 2.1 desktop system, DIY home theater integrators who need robust power in a small package, and installers wanting flexible inputs including Bluetooth and USB playback. It suits users who can handle basic wiring and enclosure decisions and want an amp that tolerates a wide DC supply range.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable for buyers who want a finished consumer product with a remote, display, or factory chassis; those users should consider complete powered speakers or enclosed amplifiers with integrated controls and finishes.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVery high peak power output from the two TPA3251 chips provides strong headroom for subwoofer and satellite channels.\u003c\/li\u003e\n\u003cli\u003eMultiple input methods including Bluetooth and USB flash playback make it versatile for varied source types.\u003c\/li\u003e\n\u003cli\u003eWide DC 12-38V input and a goldplated high current DC socket increase installation flexibility and connection safety.\u003c\/li\u003e\n\u003cli\u003eBuiltin protections reduce risk of damage under overload or short conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDelivered as a bare amplifier board, it requires DIY enclosure, wiring, and cooling considerations for longterm use.\u003c\/li\u003e\n\u003cli\u003eThe app and Bluetooth customization are useful but require additional setup compared with plugandplay boxed amplifiers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e2.1 channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier chips\u003c\/td\u003e\n\u003ctd\u003eTPA3251 (dual)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower output\u003c\/td\u003e\n\u003ctd\u003e220W2 + 350W (peak)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput voltage\u003c\/td\u003e\n\u003ctd\u003eDC 12-38V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio inputs\u003c\/td\u003e\n\u003ctd\u003eBluetooth, 3.5mm AUX, USB sound card, USB flash drive (FAT32)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC connector\u003c\/td\u003e\n\u003ctd\u003eGoldplated 5.5 x 2.5mm high current shielded socket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtections\u003c\/td\u003e\n\u003ctd\u003eShortcircuit, overcurrent, overheating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe S350HS TPA3251 amplifier board is a strong pick for DIYers and home audio tinkerers who need substantial power and flexible input options in a compact module. Its dual TPA3251 design, wide voltage tolerance, and protection features give real-world reliability, while the appenabled Bluetooth settings add convenience. Given it ships as a bare board, it represents good value when you factor in performance and versatility for custom installations.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan the board play music from a USB flash drive?\u003c\/strong\u003e\u003cbr\u003eYes, it supports FAT32 format USB flash drive playback for direct music playback without another source device.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat power supply does it need?\u003c\/strong\u003e\u003cbr\u003eUse a DC supply in the 12-38V range appropriate to your speaker load; higher voltage allows more power but ensure your PS and wiring are rated for the current.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include protection against short circuits and overheating?\u003c\/strong\u003e\u003cbr\u003eYes, the board includes shortcircuit, overcurrent, and overheating protection that reports faults to the processor.\u003c\/p\u003e","brand":"AUGUESLD","offers":[{"title":"Default Title","offer_id":46781174481115,"sku":"B0D9LVXQX5","price":46.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61wbfD3l-fL._SL1500.jpg?v=1747854333","url":"https:\/\/gearmusthave.com\/products\/s350hs-tpa3251-bluetooth-power-amplifier-board-2-1-channel-highpower","provider":"GearMustHave","version":"1.0","type":"link"}