{"product_id":"zk-mt21-sound-amplifier-module-2x50w-100w-2-1-channel-subwoofer-bluetooth-5-0-digital-power-amplifier-board-aux-12v-24v-stereo","title":"ZK-MT21 Sound Amplifier Module 2x50W+100W 2.1 Channel Subwoofer Bluetooth 5.0 Digital Power Amplifier Board AUX 12V\/24V Stereo","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eother\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBuilt-in Battery\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eInput Type\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eBluetooth\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOutput Type\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eLINE OUT (AUDIO OUT)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003ePackage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYES\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eRecommended Headphone Maximum Impedance\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e\u0026lt; 32 Ohm\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMini Amplifier\u003c\/span\u003e\u003c\/p\u003e\u003cp style='font-family:\"TT Norms Pro\", \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:16px;font-weight:bold;letter-spacing:normal;line-height:inherit;text-align:left;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box' class=\"word-break white-space mt-10\" align=\"left\"\u003eFeature:\u003c\/p\u003e\u003cp style='font-family:\"TT Norms Pro\", \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:13px;font-weight:normal;letter-spacing:normal;line-height:inherit;text-align:left;white-space:normal;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box' class=\"word-break white-space mt-10\" align=\"left\"\u003e●The Bluetooth-compatible audio power amplifier module has 2.1 channels and the maximum output power is 2X50W+100W.\u003cbr\u003e● It has two audio input modes, AUX and Bluetooth-compatible, and a two-in-one power amplifier board. Bluetooth-compatible5.0, higher transmission efficiency, longer transmission distance\u003cbr\u003e● It has short-circuit protection, over-current, over-heating, and anti-reverse protection to prevent total failure. When an overload occurs, the device reports the fault condition to the processor to protect itself from damage\u003cbr\u003e● It adopts copper DC connectors and barrier terminals. It can withstand high current without heating or damaging wires.\u003cbr\u003e● Classic appearance multi-function main knob. The main knob adopts a rotary encoder that is only used in high-end power amplifiers, which realizes 360-degree stepless tuning and a smooth one-key start and stop. The operation is simple and convenient by long pressing the switch.\u003cbr\u003e● With bass, treble, subwoofer frequency and volume control, you can easily adjust the volume and enjoy the music tone you want. It is widely used in shopping malls, home theaters, speakers, etc.\u003c\/p\u003e\u003cp style='font-family:\"TT Norms Pro\", \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:16px;font-weight:bold;letter-spacing:normal;line-height:inherit;text-align:left;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box' class=\"word-break white-space mt-10\" align=\"left\"\u003eSpecification:\u003c\/p\u003e\u003cp style='font-family:\"TT Norms Pro\", \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:13px;font-weight:normal;letter-spacing:normal;line-height:inherit;text-align:left;white-space:normal;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box' class=\"word-break white-space mt-10\" align=\"left\"\u003eProduct name: 2.1 channel Bluetooth-compatible audio power amplifier module\u003cbr\u003eProduct model: ZK-MT21\u003cbr\u003eBluetooth-compatible version: 5.0 (unobstructed, 15 meters)\u003cbr\u003eInput sensitivity: 500mV\u003cbr\u003eInput method: AUX+ Bluetooth-compatible\u003cbr\u003eNumber of channels: 2.1 channels\u003cbr\u003ePower amplifier chip: Domestic power amplifier chip\u003cbr\u003eAdapter power supply: above DC12-24V\/5A (24V battery pack is not allowed)\u003cbr\u003eAdapted speakers: 20-100W, 4-8Q\u003cbr\u003eOutput power: left and right channels \u0026lt;50W; subwoofer \u0026lt;100W\u003cbr\u003eProtection mechanism: Anti-reverse connection, overheating, overcurrent, short circuit protection\u003c\/p\u003e\u003cp style='font-family:\"TT Norms Pro\", \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:16px;font-weight:bold;letter-spacing:normal;line-height:inherit;text-align:left;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box' class=\"word-break white-space mt-10\" align=\"left\"\u003eNotice:\u003c\/p\u003e\u003cp style='font-family:\"TT Norms Pro\", \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:13px;font-weight:normal;letter-spacing:normal;line-height:inherit;text-align:left;white-space:normal;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box' class=\"word-break white-space mt-10\" align=\"left\"\u003eThe product can be connected with an external antenna, but does not include an antenna and an antenna base, please purchase it separately.\u003c\/p\u003e\u003cp style='font-family:\"TT Norms Pro\", \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:16px;font-weight:bold;letter-spacing:normal;line-height:inherit;text-align:left;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box' class=\"word-break white-space mt-10\" align=\"left\"\u003eTip:\u003c\/p\u003e\u003cp style='font-family:\"TT Norms Pro\", \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:13px;font-weight:normal;letter-spacing:normal;line-height:inherit;text-align:left;white-space:normal;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box' class=\"word-break white-space mt-10\" align=\"left\"\u003e1. Only when the audio input is enough and the power supply voltage\/current is enough, there will be enough output power!\u003cbr\u003e2. The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power!!! Please make sure that the power of the adapted power supply is greater than the actual working power of the amplifier!\u003c\/p\u003e\u003cp style='font-family:\"TT Norms Pro\", \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:16px;font-weight:bold;letter-spacing:normal;line-height:inherit;text-align:left;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box' class=\"word-break white-space mt-10\" align=\"left\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S5dea7195bda24156ac706eb5e8270647p.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sc9428977f60c4bdda87ecf2fe01bb8e1Z.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S8c3dcc4482c4476f8a192b54ff95e692Q.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S530b8ee1691f40cfb9e07be76f5ca852H.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S1a3b75384dfd43928f45b25ed4847395c.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S4e90459798704f2bbb876480ab11c81dh.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sfbf8f34052724a7aa01a8cd7425d0b44F.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e","brand":"Beauty World Shop","offers":[{"title":"ZK-MT21","offer_id":47591994458350,"sku":"1005009651549351-ZK-MT21","price":42.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/5254\/6286\/files\/Sc1c845c07687440c950654c16a6d70e0k.webp?v=1769378120","url":"https:\/\/www.beautyworldshop.com\/products\/zk-mt21-sound-amplifier-module-2x50w-100w-2-1-channel-subwoofer-bluetooth-5-0-digital-power-amplifier-board-aux-12v-24v-stereo","provider":"Beauty World Shop","version":"1.0","type":"link"}