{"product_id":"digital-power-amplifier-module-2-1-channel-compact-50w-100w-sound","title":"Digital Power Amplifier Module 2.1 Channel - Compact 50W\/100W Sound","description":"\u003cp\u003eIn this review of the Digital Power Amplifier Module, the bottom line is simple: it is a compact, practical 2.1 channel amp board for DIY speaker builders and hobbyists who want Bluetooth and aux input with protection features. The reviewer found the unit valuable for small desktop systems and powered subwoofer projects because it combines \u003cstrong\u003eBluetooth 5.0\u003c\/strong\u003e convenience, adjustable tone controls and robust safety mechanisms in a board that runs on common DC adapters. It is not a finished consumer speaker but a capable module for custom builds and experiments.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth 5.0:\u003c\/strong\u003e Wireless input with a useful range up to about 49 ft unobstructed for streaming from phones or tablets without extra hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAUX input:\u003c\/strong\u003e A 3.5mm aux jack provides a reliable wired option for sources that need lower latency or simpler setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.1 channel output:\u003c\/strong\u003e Dual full-range outputs plus a dedicated subwoofer channel let builders create a more layered stereo image with stronger bass impact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTone controls:\u003c\/strong\u003e Separate high and low frequency knobs allow on-board adjustment to make the sound more detailed or to emphasize bass for a more impactful low end.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection mechanisms:\u003c\/strong\u003e Built-in short circuit, over current, overheat and anti-reverse protections help the board survive common wiring or load problems during DIY projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConvenient power input:\u003c\/strong\u003e Accepts common DC adapters with a 5.5x2.1mm plug and runs on 12 to 24V, simplifying power sourcing for most hobbyist setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis board is aimed at DIY audio enthusiasts, hobbyists building desktop or small room speaker systems, and anyone wanting a compact amplifier with Bluetooth to add to custom enclosures. It is also suitable for a powered subwoofer module in a home theater experiment because of its dedicated sub output and adjustable low-frequency control.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable for buyers who want a finished plug-and-play powered speaker or those who need studio-grade, neutral monitoring accuracy; this is a module for builds and practical listening rather than critical mastering applications.\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\u003eBluetooth 5.0 provides solid wireless range and easy pairing for modern devices.\u003c\/li\u003e\n\u003cli\u003eMultiple protection systems reduce the risk of damage during development and testing.\u003c\/li\u003e\n\u003cli\u003eAdjustable high and low frequency knobs let users shape the sound without external EQ.\u003c\/li\u003e\n\u003cli\u003eCompatible with common 5.5x2.1mm DC adapters and a wide 12 to 24V input range for flexible power choices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAs a bare module it requires speaker wiring, enclosure work and a suitable power supply; not a consumer-ready speaker.\u003c\/li\u003e\n\u003cli\u003eNo detailed user manual included in the product description, so some DIY experience is helpful for proper setup.\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\u003eZyyini\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e2.1 channel (left, right, sub)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e50W 50W 100W total output (per product naming)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003eBluetooth 5.0 and 3.5mm AUX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003eDC 12 to 24V, plug size 5.5x2.1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eShort circuit, over current, overheat, anti-reverse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Digital Power Amplifier Module is a strong choice for DIYers who want wireless streaming and a dedicated sub output in a compact board with built-in protections. It delivers good value for small speaker builds and subwoofer applications when paired with the right power supply and speakers, but it is not a finished consumer product so some assembly and basic electronics familiarity are required.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this board run on a 12V adapter?\u003c\/strong\u003e\u003cbr\u003eYes, it accepts DC 12 to 24V using a standard 5.5x2.1mm adapter; choose a supply with adequate current for your speakers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it have wired inputs?\u003c\/strong\u003e\u003cbr\u003eYes, it includes a 3.5mm AUX jack for direct wired audio connection in addition to Bluetooth.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it protect itself if overloaded?\u003c\/strong\u003e\u003cbr\u003eYes, the board reports faults and includes short circuit, over current, overheat and anti-reverse mechanisms to help prevent damage.\u003c\/p\u003e","brand":"Zyyini","offers":[{"title":"Default Title","offer_id":46775097262299,"sku":"B0BVBWYB7M","price":13.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71nttQDQk1L._SL1500.jpg?v=1747854270","url":"https:\/\/gearmusthave.com\/products\/digital-power-amplifier-module-2-1-channel-compact-50w-100w-sound","provider":"GearMustHave","version":"1.0","type":"link"}