{"product_id":"zk-tb22-2-2-channel-dual-subwoofer-bluetooth-amplifier-board-75w-75w-145w-145w-dc12-24v-for-home-car-stereo","title":"ZK-TB22 2.2-Channel Bluetooth Amplifier Board with Dual Subwoofer Outputs","description":"\u003cp\u003eBuild a stereo system with two subwoofers using the ZK-TB22 amplifier board. Connect a Bluetooth, AUX, PC or USB audio source, then adjust treble, midrange and bass to shape your DIY speaker setup.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2.2-channel configuration: left, right and two subwoofer outputs.\u003c\/li\u003e\n\u003cli\u003eIndependent volume adjustment for stereo channels and dual subwoofers.\u003c\/li\u003e\n\u003cli\u003eBluetooth with a supplier-listed transmission distance of up to 15 metres.\u003c\/li\u003e\n\u003cli\u003eReplaceable dual-package operational amplifiers and a reserved microphone expansion port.\u003c\/li\u003e\n\u003cli\u003eListed protections: undervoltage, overheating, overcurrent, short circuit and reverse input polarity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSupply: DC 12–24V. Recommended supply: DC 24V, 10A or higher.\u003c\/li\u003e\n\u003cli\u003eSupplier-listed maximum output: up to 75W per left\/right channel and 145W per subwoofer channel.\u003c\/li\u003e\n\u003cli\u003eLeft\/right speaker compatibility: 20–75W, 4–8Ω.\u003c\/li\u003e\n\u003cli\u003eSubwoofer compatibility: 50–150W, 2–8Ω.\u003c\/li\u003e\n\u003cli\u003eListed dimensions: integrated-potentiometer version 117 × 116mm; external-potentiometer version 117 × 101mm.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIncluded\u003c\/h3\u003e\u003cp\u003eOne amplifier board and one screwdriver. Choose from the existing Style A and Style B options; the supplied listing does not map those option names to the potentiometer versions.\u003c\/p\u003e\u003ch3\u003ePower and connection notes\u003c\/h3\u003e\u003cp\u003eDC power only. Never connect AC power or a nominal 24V battery pack, whose full-charge voltage can exceed the board's limit. Use a stable power supply within the rated voltage range and with sufficient power capacity. Actual output depends on supply voltage and current, speaker impedance and audio input; maximum ratings are not guaranteed continuous output. Bluetooth takes priority, so disconnect it before using wired audio. This is a DIY component, not a complete speaker system.\u003c\/p\u003e","brand":"My Store 5","offers":[{"title":"Style A","offer_id":67765185347817,"sku":"14:1202#Style A","price":1379.99,"currency_code":"ZAR","in_stock":true},{"title":"Style B","offer_id":67765185315049,"sku":"14:350852#Style B","price":1689.99,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/0449\/2777\/files\/audio-cutout-8c9304fb-4238-4d64-9f79-ea7f2c035a2f.png?v=1793721614","url":"https:\/\/diyprojectsaudio.myshopify.com\/products\/zk-tb22-2-2-channel-dual-subwoofer-bluetooth-amplifier-board-75w-75w-145w-145w-dc12-24v-for-home-car-stereo","provider":"Electronic diy","version":"1.0","type":"link"}