{"product_id":"enhance-your-sound-qinizx-2-1-subwoofer-amp-board","title":"Digital 2.1 Channel Subwoofer Amplifier Board 6W+6W+25W - Compact HiFi","description":"\u003cp\u003eIn this review of the Digital 2.1 Channel Subwoofer Amplifier Board the bottom line is simple: this compact board is for hobbyists and DIY audio builders who want a small, flexible amplifier that delivers clear stereo and a usable subwoofer channel without a large chassis. The reviewer found it earns praise for its low-volume footprint and practical power range, and recommends it when space and versatility matter. The board is best used with a 13.5V or higher supply to reach the stated output, and it stands out for using the TDA1517P in the left and right outputs for reliable hi-fi performance.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.1 Channel Design:\u003c\/strong\u003e Provides stereo left-right channels plus a dedicated bass output so a compact system can reproduce full-range sound with enhanced low end.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTDA1517P Output Stage:\u003c\/strong\u003e The left and right channels employ the TDA1517P enthusiast audio chip, which yields clean, low-distortion mid and high frequencies for small speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Input Voltage:\u003c\/strong\u003e Accepts DC 6.5-15V so it can be powered from adapters, switching supplies or batteries, giving installation flexibility for car, desktop, or TV use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRealistic Power Levels:\u003c\/strong\u003e Delivers about 6W+6W stereo and up to 25W to the subwoofer when fed with the recommended ~13.5V rail, making it suitable for 2-8W full-range and 20-50W subwoofers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact PCB:\u003c\/strong\u003e Built on 1.6mm FR-4 fiberglass and measuring roughly 2.48x1.77x0.78 in, the board fits tight enclosures and custom projects while providing M3 mounting holes for secure installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePractical I\/O:\u003c\/strong\u003e Standard 5.5x2.1mm DC power jack or solder pads and a 3.5mm audio input or pads simplify connections in both permanent and temporary setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis board is aimed at electronics hobbyists, DIY audio tinkerers and small-system integrators building compact home theater satellites, desktop speaker pairs with a powered sub, or car audio test rigs. It suits anyone who needs a simple, board-level amplifier that can be integrated into custom enclosures or breadboarded into prototypes.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include users seeking very high power for large passive speakers, full-featured receivers with digital inputs, or finished consumer amplifiers with built-in protection and cosmetic enclosures. This board is a component, not a finished consumer product.\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\u003eCompact, easy-to-mount PCB that fits small enclosures and DIY racks.\u003c\/li\u003e\n\u003cli\u003eDedicated subwoofer channel delivers noticeably more bass than simple stereo boards.\u003c\/li\u003e\n\u003cli\u003eWide DC input range allows flexible power sourcing for field or bench use.\u003c\/li\u003e\n\u003cli\u003eWell-matched output stage using TDA1517P for good stereo fidelity on small speakers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum bass power requires a higher voltage (around 13.5V) and a recommended \u0026gt;3A supply, so users may need to upgrade their PSU to reach peak output.\u003c\/li\u003e\n\u003cli\u003eAs a bare board it lacks enclosure, heatsinking and some protection features expected in finished amplifiers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003eDC 6.5-15V (recommend \u0026gt;13.5V for full power)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Current\u003c\/td\u003e\n\u003ctd\u003eMore than 3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStereo Output\u003c\/td\u003e\n\u003ctd\u003e6W + 6W (left and right)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBass Output\u003c\/td\u003e\n\u003ctd\u003eUp to 25W (subwoofer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChipset\u003c\/td\u003e\n\u003ctd\u003eTDA1517P for left\/right output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePCB Material \u0026amp; Thickness\u003c\/td\u003e\n\u003ctd\u003eFR-4 fiberglass, 1.6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard Size\u003c\/td\u003e\n\u003ctd\u003e2.48 x 1.77 x 0.78 in (63 x 45 x 20 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Digital 2.1 Channel Subwoofer Amplifier Board is a strong value for DIY builders who want a compact, flexible amplifier with a real subwoofer channel and reliable stereo chipsets. It delivers practical power for small speakers and subs when paired with a proper 13.5V+ supply, and its small PCB and standard connectors make integration straightforward for projects where a finished amplifier is not required.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat power supply is best?\u003c\/strong\u003e\u003cbr\u003eUse a DC supply of about 13.5V or higher and at least 3A recommended to approach the board's maximum stated outputs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat speakers should I pair with it?\u003c\/strong\u003e\u003cbr\u003eFor the stereo channels use 2-4 in or 4-8 ohm full-range speakers rated ~3-25W; for the bass channel a 4-6 in subwoofer rated ~20-50W is suggested.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I mount the board?\u003c\/strong\u003e\u003cbr\u003eThe PCB has M3 mounting holes and is made on 1.6mm FR-4; allow for the potentiometer protrusion and wire clearance when designing an enclosure.\u003c\/p\u003e","brand":"QINIZX","offers":[{"title":"Default Title","offer_id":46758423822555,"sku":"B09Y59W1Q5","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71y0ghThV9L._SL1000.jpg?v=1747854832","url":"https:\/\/gearmusthave.com\/products\/enhance-your-sound-qinizx-2-1-subwoofer-amp-board","provider":"GearMustHave","version":"1.0","type":"link"}