{"product_id":"s350h-220wx2-350w-bluetooth-power-amplifier-board-treble-bass","title":"S350H 220Wx2 350W Bluetooth Power Amplifier Board - Treble \u0026 Bass","description":"\u003cp\u003eOur review of the S350H power amplifier board finds it best suited for DIY audio builders and small home theater setups who want high output and tonal control without a large chassis. The single biggest reason to consider this module is its dual TPA3255 HIFI chips delivering substantial power while offering independent treble and bass adjustment, which gives more control over tonal balance than a basic amp board. It connects via Bluetooth or AUX, accepts a wide 18V to 38V DC input, and includes protection features that make it a reliable choice for hobbyist installations.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTPA3255 HIFI Chip:\u003c\/strong\u003e Dual TPA3255 chips provide high-fidelity amplification and the potential for substantial output power suitable for larger bookshelf or satellite speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Voltage Input:\u003c\/strong\u003e The 18V to 38V input range lets users choose from a variety of DC adapters to match desired power and headroom.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreble and Bass Control:\u003c\/strong\u003e Separate high and low frequency knobs allow precise tonal shaping so users can tighten mids, boost lows, or add clarity to highs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAUX and Bluetooth Connectivity:\u003c\/strong\u003e Bluetooth streaming plus an AUX input give flexible source options for both wireless and wired playback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel Adjustment:\u003c\/strong\u003e Independent left\/right adjustment for high and low frequencies enables balancing across stereo pairs for better imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Mechanisms:\u003c\/strong\u003e Built-in safeguards against short circuit, undervoltage, overvoltage and clipping help protect connected speakers and the board.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe S350H is ideal for audio DIYers, makers building powered speakers, and home theater tinkerers who need a compact module with strong output and tone controls. Its feature set makes it a good match for users who will install the board inside custom enclosures or retrofitted speaker cabinets and who can provide an appropriate DC supply.\u003c\/p\u003e\n\u003cp\u003eIt is less suited to someone who wants a finished, plug-and-play consumer amplifier with a chassis, remote, or cosmetic finish. Also, if a user needs very low-voltage operation or integrated streaming services, they should consider a different product that includes those conveniences out of the box.\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\u003eHigh output potential from dual TPA3255 chips gives strong, clear power for demanding speakers.\u003c\/li\u003e\n\u003cli\u003eSeparate treble and bass controls provide meaningful tonal shaping beyond a single volume knob.\u003c\/li\u003e\n\u003cli\u003eWide 18V-38V compatibility means many common DC adapters will work without special supplies.\u003c\/li\u003e\n\u003cli\u003eProtection features add reliability for long-term use in custom builds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe board is a module rather than a finished amplifier, so it requires installation and an external DC supply.\u003c\/li\u003e\n\u003cli\u003eNo integrated remote or enclosure means users must handle mounting and protection themselves.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLuqeeg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier chips\u003c\/td\u003e\n\u003ctd\u003eDual TPA3255 HIFI chips\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower handling\u003c\/td\u003e\n\u003ctd\u003eUp to 220W x 2 + 350W (PMPO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput voltage\u003c\/td\u003e\n\u003ctd\u003eDC 18V - 38V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003eBluetooth and AUX inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eShort circuit, undervoltage, overvoltage, clipping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe S350H amplifier board is a strong choice for builders who want a high-output, tone-adjustable module for home audio or small theater projects. With dual TPA3255 chips, wide voltage compatibility, and separate treble and bass controls, it offers excellent value for a DIY install-provided you are comfortable supplying a DC adapter and mounting the board in an enclosure.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat DC plug size does this board use?\u003c\/strong\u003e\u003cbr\u003eThe board is compatible with common DC adapters using a 5.5mm x 2.1mm plug, or you can solder wires directly to the power terminals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I stream wirelessly to this amplifier?\u003c\/strong\u003e\u003cbr\u003eYes, it has Bluetooth connectivity for wireless streaming as well as an AUX input for wired sources.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include protection against faults?\u003c\/strong\u003e\u003cbr\u003eYes, the S350H includes short circuit, undervoltage, overvoltage and clipping protections to safeguard the board and connected speakers.\u003c\/p\u003e","brand":"Luqeeg","offers":[{"title":"Default Title","offer_id":46781180149979,"sku":"B0C6N456W8","price":43.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71Y9d0CAeQL._SL1500.jpg?v=1747854746","url":"https:\/\/gearmusthave.com\/products\/s350h-220wx2-350w-bluetooth-power-amplifier-board-treble-bass","provider":"GearMustHave","version":"1.0","type":"link"}