{"product_id":"zk-tb21-bluetooth-amplifier-board-50w-50w-100w-2-1-channel-subwoofer-amp-board-with-treble-and-bass-control","title":"ZK-TB21 Bluetooth Amplifier Board, 50W+50W+100W 2.1 Channel Subwoofer Amp Board with Treble and Bass Control","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eZK-TB21 Bluetooth Amplifier Board,50W+50W+100W 2.1 Channel Subwoofer Amp Board with Treble and Bass Control,DC 12-24V, Bluetooth and AUX Inputs, DIY Wireless Speakers AMP Board, Password Free\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eZK-TB21 Bluetooth Amplifier Board, 50W+50W+100W 2.1 Channel Subwoofer Amp Board with Treble and Bass Control\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDaakro have been working on home audio-visual systems for more than twenty years, with the aim of creating high quality home audio-visual systems so that our customers can enjoy music and life! We are constantly committed to researching higher quality audio and video equipment, such as audio amplifiers, analog amplifiers, etc., and we will continue to learn from our customers' opinions to improve our products and introduce new products. Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Power Amplifier Chip:TPA3116D2 Input Voltage: DC 12V-24V Max Power Output: 50w+50w+100W Input Method: Bluetooth \u0026amp; AUX Output Impedance:4-8O;Bluetooth Version:BT 5.0 We have designed a variety of input modes for the ZK-TB21 power amplifier board. It includes Bluetooth mode, AUX mode. It can be connected to almost all playback devices you can think of, such as mobile phones, tablets, CD players, computers,etc. This Bluetooth power amplifier board uses a TDA3116D2 high-fidelity power amplifier chips, and the power output of a single chip can reach 100W. The large heat sink can quickly release heat to ensure that the chip can stably output large-scale power and avoid damage to the chip. Make wiring more convenient without damaging the wires. 5.5mm * 2.1mm DC interface, suitable for most notebook power adapters. Allowing you to have more sound choices. A small amp can also create a small movie theater for you. The power switch on the board is a standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or unplug it for a long time, you can unplug the DC plug on the machine. ZK-TB21 ZK-502T ZK-1002T ZK-1001B\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ [Dual TPA3116D2 HiFi Chip]Daakro ZK-TB21 Bluetooth Amplifier Board uses the original imported TPA3116D2 HiFi amplifier chip with PurePath technology for ultra-high resolution, ultra-low distortion and high-fidelity sound quality. Supports 2.1-channel configuration, including left channel, right channel and subwoofer output. The left and right channels each provide 50W output power, and the subwoofer can reach a maximum output power of 100W, creating an immersive sound experience.\u003c\/li\u003e\n\u003cli\u003e✅ [Dual Audio Input Modes] This amplifier board integrates AUX and Bluetooth 5.0 input methods. You can seamlessly connect with the latest Bluetooth 5.0 technology and enjoy the convenience of wireless, or you can choose the traditional AUX input connection to access the audio source. The vast majority of devices can be used, such as mobile phones, TVs, laptops, etc. It is very easy to connect and use, enjoy the fun of music.\u003c\/li\u003e\n\u003cli\u003e✅ [Wide Application]The Daakro ZK-TB21 amplifier board supports a wide input voltage range from 12V to 24V DC, and can be powered by 12V, 15V, 18V, or 24V. This adaptability ensures that you can easily find the right power source. The board is suitable for 30-200W, 4-8O speakers, and can be perfectly matched with speakers of all sizes. This means you can choose the right power supply and speakers according to your actual needs.\u003c\/li\u003e\n\u003cli\u003e✅ [Comprehensive Protection]The Daakro ZK-TB21 Bluetooth Amplifier Board has a comprehensive built-in protection mechanism, including over-voltage protection, under-voltage protection, over-temperature protection, short-circuit protection and reverse connection protection. These smart protection features ensure that your device is protected in every situation, so you can enjoy your music with confidence.\u003c\/li\u003e\n\u003cli\u003e✅ [Optimal Power Matching]Note that optimal audio output requires the correct combination of adequate audio input with appropriate power supply voltage and current. Different loudspeaker impedances affect relative sound power. A loudspeaker with a higher impedance will produce less relative sound power with sufficient voltage and current. Please be aware of these factors to optimize your audio experience.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShipping \u0026amp; Guarantees\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ FREE standard shipping within the United States (3–6 business days)\u003c\/li\u003e\n\u003cli\u003e✅ 100% money-back guarantee for lost or damaged items\u003c\/li\u003e\n\u003cli\u003e✅ Secure checkout with encrypted payment processing\u003c\/li\u003e\n\u003cli\u003e✅ Shipping via UPS, FedEx, and USPS\u003c\/li\u003e\n\u003cli\u003e✅ Ships to lower 48 states only (no PO Boxes \/ APO \/ FPO)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReturns\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ 30-day hassle-free returns\u003c\/li\u003e\n\u003cli\u003e✅ Items must be unused and in original packaging\u003c\/li\u003e\n\u003cli\u003e✅ Full refund if item is not delivered\u003c\/li\u003e\n\u003cli\u003e✅ Guaranteed delivery within 6–7 business days\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePayment Methods\u003c\/h3\u003e\n\u003cp\u003e✅ Credit Cards, PayPal, Shop Pay, Apple Pay, Google Pay, Amazon Pay, Meta Pay\u003c\/p\u003e\n\u003ch3\u003eCustomer Support\u003c\/h3\u003e\n\u003cp style=\"text-align:left;\"\u003e✅ Questions? Contact us at \u003cstrong\u003eSupport@GiftAbay.com\u003c\/strong\u003e\u003cbr\u003eWe respond within 24 hours on business days.\u003c\/p\u003e\n\u003cdiv class=\"seo-data\"\u003e\n\u003cp\u003e\u003cstrong\u003eSEO Title:\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKeywords:\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e Electronics\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSubcategories:\u003c\/strong\u003e Home Audio, Home Theater, Receivers \u0026amp; Amplifiers, Amplifiers\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Daakro","offers":[{"title":"Default Title","offer_id":47629479510236,"sku":"TGABL2162268","price":28.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0816\/2816\/8412\/files\/71frPLCVYHL._SL1500.jpg?v=1772124656","url":"https:\/\/tech.giftabay.com\/products\/zk-tb21-bluetooth-amplifier-board-50w-50w-100w-2-1-channel-subwoofer-amp-board-with-treble-and-bass-control","provider":"Tech.GiftAbay","version":"1.0","type":"link"}