{"product_id":"xh-m542-tda3116d2-100w-mono-digital-amplifier-board-dc12-26v","title":"XH-M542 TDA3116D2 100W Mono Digital Power Amplifier Board DC12–26V | Class D Audio Amp Module","description":"\u003ch2\u003eXH-M542 TDA3116D2 100W Mono Class D Digital Power Amplifier Board\u003c\/h2\u003e\n\n\u003cp\u003eBuild a powerful, efficient mono audio amplifier with the \u003cstrong\u003eXH-M542 TDA3116D2 amplifier board\u003c\/strong\u003e. Based on the Texas Instruments TPA3116D2 (TDA3116D2) Class D amplifier IC, this compact 79×54mm module delivers up to \u003cstrong\u003e100W of mono output power\u003c\/strong\u003e from a wide DC 12–26V supply — making it ideal for DIY subwoofer amplifiers, powered speaker builds, and home audio system upgrades. Class D efficiency means minimal heat generation even at high output levels.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eXH-M542\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmplifier IC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTDA3116D2 (TPA3116D2)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmplifier Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClass D (switching amplifier)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMono (single channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 12V – 26V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;3A recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSignal-to-Noise Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMono track\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePCB Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e79 × 54 × 16mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSMD\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eTDA3116D2 (TPA3116D2) IC\u003c\/strong\u003e — proven Texas Instruments Class D amplifier with excellent audio performance\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003e100W mono output\u003c\/strong\u003e — sufficient power for 4Ω or 8Ω subwoofers and full-range speakers\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eWide supply range DC12–26V\u003c\/strong\u003e — compatible with 12V car batteries, 19V laptop adapters, and 24V power supplies\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003e100dB SNR\u003c\/strong\u003e — high signal-to-noise ratio for clean, low-noise audio reproduction\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eClass D efficiency\u003c\/strong\u003e — \u0026gt;90% efficiency means minimal heat, no heatsink required at moderate power levels\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eCompact 79×54mm PCB\u003c\/strong\u003e — fits easily into custom enclosures and speaker cabinets\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eSMD construction\u003c\/strong\u003e — professional PCB layout for stable, low-noise operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDIY subwoofer amplifier builds (4Ω or 8Ω woofers)\u003c\/li\u003e\n  \u003cli\u003ePowered bookshelf speaker projects\u003c\/li\u003e\n  \u003cli\u003eCar audio amplifier (12V supply compatible)\u003c\/li\u003e\n  \u003cli\u003eHome theater subwoofer channel amplification\u003c\/li\u003e\n  \u003cli\u003eBluetooth speaker amplifier module\u003c\/li\u003e\n  \u003cli\u003eRaspberry Pi and Arduino audio output amplification\u003c\/li\u003e\n  \u003cli\u003eReplacement amplifier board for damaged commercial speakers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWiring Guide\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower supply:\u003c\/strong\u003e Connect DC 12–26V to the VCC and GND terminals. Use a supply rated for \u0026gt;3A (5A+ recommended for full power).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAudio input:\u003c\/strong\u003e Connect your audio source (phone, DAC, preamp) to the L\/R input terminals or RCA input (if equipped). For mono use, bridge L and R inputs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpeaker output:\u003c\/strong\u003e Connect your 4Ω or 8Ω speaker to the speaker output terminals.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower on:\u003c\/strong\u003e Apply power. The board is ready to amplify immediately — no warm-up required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVolume control:\u003c\/strong\u003e Adjust input signal level from your source device or add an external potentiometer to the input for volume control.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this with a 12V car battery?\u003c\/strong\u003e\u003cbr\u003eA: Yes. DC 12V is within the operating range. At 12V, output power will be lower than the 100W maximum (which requires 24–26V). Expect approximately 30–50W at 12V into a 4Ω load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this board include a volume control?\u003c\/strong\u003e\u003cbr\u003eA: The XH-M542 board does not include an onboard volume potentiometer. Control volume from your source device or add an external 10kΩ potentiometer to the audio input.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What speaker impedance is compatible?\u003c\/strong\u003e\u003cbr\u003eA: The TDA3116D2 is rated for 4Ω to 8Ω loads. Do not connect speakers below 4Ω as this may damage the IC.\u003c\/p\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× XH-M542 TDA3116D2 100W Mono Digital Power Amplifier Board\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"1 PCS \/ CHINA","offer_id":46978931130603,"sku":"14:1202#1 PCS;200007763:201336100","price":13.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/xh-m542-tda3116d2-digital-power-amplifier-board-100w-mono-audio-module.webp?v=1761022990","url":"https:\/\/keszoox.com\/products\/xh-m542-tda3116d2-100w-mono-digital-amplifier-board-dc12-26v","provider":"Keszoox","version":"1.0","type":"link"}