{"product_id":"tda7498-class-d-stereo-amplifier-board-2x100w-15-34v-xh-m151-90-efficiency","title":"TDA7498 Class D Stereo Amplifier Board — 2×100W, 15–34V, XH-M151, 90% Efficiency","description":"\u003ch2\u003eTDA7498 Class D Stereo Amplifier Board — 2×100W, 15–34V, XH-M151, 90% Efficiency\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eXH-M151 TDA7498 amplifier board\u003c\/strong\u003e is a high-efficiency Class D stereo audio amplifier delivering \u003cstrong\u003e2×100W\u003c\/strong\u003e (80W+80W RMS into 8Ω) from a 15–34V DC supply. Based on the STMicroelectronics TDA7498 IC, it achieves up to \u003cstrong\u003e90% efficiency\u003c\/strong\u003e — far superior to Class AB amplifiers — making it ideal for DIY hi-fi speaker systems, home audio amplifiers, and powered speaker builds where heat dissipation is a concern. The compact 90×64mm PCB includes all necessary filtering and protection circuitry.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eIC\u003c\/td\u003e\n\u003ctd\u003eSTMicroelectronics TDA7498\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard Model\u003c\/td\u003e\n\u003ctd\u003eXH-M151\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e2×100W (peak) \/ 2×80W RMS (8Ω, 15% THD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e15V – 34V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeaker Impedance\u003c\/td\u003e\n\u003ctd\u003e4Ω or 8Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003eUp to 90% (Class D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;100dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD+N\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.1% (at 1W, 1kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e20Hz – 20kHz (±1dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandby \/ Mute\u003c\/td\u003e\n\u003ctd\u003eYes (onboard control pins)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePCB Dimensions\u003c\/td\u003e\n\u003ctd\u003e90 × 64mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eClass D vs Class AB Amplifier — Key Differences\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eClass D (TDA7498)\u003c\/th\u003e\n\u003cth\u003eClass AB\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003eUp to 90%\u003c\/td\u003e\n\u003ctd\u003e50–70%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeat Generation\u003c\/td\u003e\n\u003ctd\u003eLow (small heatsink)\u003c\/td\u003e\n\u003ctd\u003eHigh (large heatsink)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio Quality\u003c\/td\u003e\n\u003ctd\u003eExcellent (\u0026gt;100dB SNR)\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003eDC 15–34V\u003c\/td\u003e\n\u003ctd\u003eDC or AC transformer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eHigh power, compact builds\u003c\/td\u003e\n\u003ctd\u003eUltra-low distortion audiophile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eRecommended Power Supply\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4Ω speakers:\u003c\/strong\u003e 24V \/ 5A+ DC supply (120W+)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8Ω speakers:\u003c\/strong\u003e 24V \/ 4A DC supply (96W)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum power:\u003c\/strong\u003e 34V \/ 6A DC supply\u003c\/li\u003e\n\u003cli\u003eUse a regulated switching power supply (SMPS) for best performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose TDA7498 XH-M151?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003e90% efficiency\u003c\/strong\u003e — minimal heat, small heatsink required\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e2×100W output\u003c\/strong\u003e — drives 4Ω and 8Ω speakers with authority\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e\u0026gt;100dB SNR\u003c\/strong\u003e — audiophile-grade signal-to-noise ratio\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eCompact 90×64mm PCB\u003c\/strong\u003e — fits in small speaker enclosures\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eStandby \/ mute control\u003c\/strong\u003e — for system integration and power management\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDIY hi-fi stereo speaker amplifier\u003c\/li\u003e\n\u003cli\u003ePowered bookshelf speaker build\u003c\/li\u003e\n\u003cli\u003eHome theater subwoofer amplifier\u003c\/li\u003e\n\u003cli\u003ePA system stage monitor amplifier\u003c\/li\u003e\n\u003cli\u003eGuitar cabinet power amplifier\u003c\/li\u003e\n\u003cli\u003eBluetooth speaker amplifier board upgrade\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × TDA7498 Class D Stereo Amplifier Board (XH-M151)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991450308843,"sku":"\u003cnone\u003e","price":44.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/tda7498-class-d-2x100w-dual-channel-stereo-amplifier-xh-m151.webp?v=1761801364","url":"https:\/\/keszoox.com\/products\/tda7498-class-d-stereo-amplifier-board-2x100w-15-34v-xh-m151-90-efficiency","provider":"Keszoox","version":"1.0","type":"link"}