{"product_id":"jiaatga-zk-tb21-bluetooth-5-0-2-1-channel-amplifier-board-50w-50w-100w","title":"JIAATGA ZK-TB21 Bluetooth 5.0 2.1 Channel Amplifier Board — 50W+50W+100W","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe ZK-TB21 from JIAATGA is a compact Bluetooth 5.0 amplifier board designed for DIY wireless speakers and small hi fi setups. Built around dual TPA3116D2 chips, it delivers a 2.1 channel stereo experience with low distortion (THD ≤ 0.1%) and clear, detailed playback, all in a space friendly package.\u003c\/p\u003e\n\n\u003ch3\u003eWhat makes it versatile\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2.1 channel output with a 50W + 50W + 100W configuration, suitable for compact speaker builds\u003c\/li\u003e\n  \u003cli\u003eWide input range from 9 to 24 V DC for flexible power options\u003c\/li\u003e\n  \u003cli\u003eBluetooth 5.0 plus an AUX input for diverse source connectivity\u003c\/li\u003e\n  \u003cli\u003eIndependent treble and bass controls for on device tonal adjustments without needing extra gear\u003c\/li\u003e\n  \u003cli\u003eProtective features such as over voltage, under voltage, over heat, and short circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReal world uses\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUpgrade a portable or desktop wireless speaker with robust amplification and built in tone controls\u003c\/li\u003e\n  \u003cli\u003eDesign a compact home audio system or gaming setup with a clean Bluetooth link\u003c\/li\u003e\n  \u003cli\u003ePrototype DIY audio projects that mix wired and wireless inputs on a single board\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTips for best results\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePower matters: higher supply voltage can increase available output, within safe limits\u003c\/li\u003e\n  \u003cli\u003eSpeaker impedance affects output; plan your power supply accordingly to avoid under or overloading\u003c\/li\u003e\n  \u003cli\u003eWhen using AUX mode, ensure the Bluetooth connection is disconnected to prevent input conflicts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSafety and setup notes\u003c\/h3\u003e\n\u003cp\u003eFollow standard DIY electrical practices. The board includes multiple protection features to guard against common issues, and adequate ventilation helps maintain performance during longer use.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the JIAATGA ZK-TB21 amplifier board?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A Bluetooth 5.0 enabled 2.1 channel amplifier with dual TPA3116D2 chips and independent treble\/bass controls for DIY wireless speakers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What power and inputs does it support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Operates from 9-24V DC with Bluetooth and AUX inputs and protective features; ensure adequate supply and compatible speaker impedance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"JIAATGA","offers":[{"title":"Default Title","offer_id":48409738936477,"sku":"B0DMW3W2B7","price":26.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/jiaatga-zk-tb21-bluetooth-amplifier-board-top-view.jpg?v=1781194798","url":"https:\/\/nexoltic.com\/products\/jiaatga-zk-tb21-bluetooth-5-0-2-1-channel-amplifier-board-50w-50w-100w","provider":"Nexoltic","version":"1.0","type":"link"}