{"product_id":"mini-digital-power-amplifier-board-2x3w-class-d-audio-module-usb-dc-5v-pam8403","title":"Mini Digital Power Amplifier Board 2x3W Class D Audio Module USB DC 5V PAM8403","description":"\u003cstrong\u003eFeature:\u003c\/strong\u003e  \u003cbr\u003e   \u003cbr\u003e Can use the computer USB port 5V power supply or using a mobile phone charger USB port 5V power supply  \u003cbr\u003e Battery power can also be used  \u003cbr\u003e High efficiency: 90%  \u003cbr\u003e Can provide 3W (left channel) + 3W (right channel) output power in the 4?? load and 5V power supply conditions  \u003cbr\u003e A class, B class amplifier such efficiency is only about 30%  \u003cbr\u003e D class amplifier is highly respected today  \u003cbr\u003e D class amplifier efficiency is extremely high, not because of temperature affect the sound quality  \u003cbr\u003e But do not add heat sink and take less space noise cancelling circuit was built in the amplifier board  \u003cbr\u003e Power on \/ off without pop noise  \u003cbr\u003e Module has a short-circuit current protection and over-temperature protection  \u003cbr\u003e   \u003cbr\u003e   \u003cstrong\u003eSpecification:\u003c\/strong\u003e  \u003cbr\u003e   \u003cbr\u003e Operating Voltage: 2.5V ~ 5.5V  \u003cbr\u003e Speaker With: 4Ohm ~ 8Ohm (recommended: 4Ohm)  \u003cbr\u003e Speaker Power: 2W ~ 8W  \u003cbr\u003e Size: 21 x 18 x 3.4mm (L x W x H)  \u003cbr\u003e Net Weight: 1g  \u003cbr\u003e   \u003cbr\u003e   \u003cstrong\u003eApplication:\u003c\/strong\u003e  \u003cbr\u003e   \u003cbr\u003e LCD TVs, monitors  \u003cbr\u003e Laptop  \u003cbr\u003e Portable Speakers  \u003cbr\u003e Portable DVD players, game consoles  \u003cbr\u003e Phone \/ speakerphone  \u003cbr\u003e   \u003cbr\u003e   \u003cstrong\u003eNote:\u003c\/strong\u003e  \u003cbr\u003e   \u003cbr\u003e First turn OFF and then powered speakers , or likely to cause damage to the chip;  \u003cbr\u003e Because digital volume control module has a great gain , so do not let too much leaving the audio signal input signal cut limiter.  \u003cbr\u003e   \u003cbr\u003e   \u003cstrong\u003ePackage included:\u003c\/strong\u003e  \u003cbr\u003e   \u003cbr\u003e 1 x Mini Amplifier Board  \u003cbr\u003e     \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/8E\/D7\/fd3f878b-13f2-4381-bfb7-940ddd331312.jpg\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/F1\/DA\/917cc1a2-e561-4206-9455-4b76fe88e885.jpg\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/39\/CC\/fa71845e-3641-4398-83b0-8f33852fedb3.jpg\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/0E\/E5\/60e6e1ee-e5b0-4bbb-bebc-b3c5fce2eb30.jpg\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/17\/32\/6e6f0cc4-1822-4314-9c7d-9b11e004a524.jpg\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/6B\/27\/6afcc6d2-320d-4a71-b318-35508d256569.jpg\"\u003e   \u003cbr\u003e","brand":"ZHIQIAN","offers":[{"title":"Default Title","offer_id":43930927988931,"sku":"ZHIQIAN-032080","price":336.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/4355\/1683\/files\/f4c790c3-7086-4b98-87d4-6102302f21ba.jpg?v=1725809165","url":"https:\/\/wrsss.com\/products\/mini-digital-power-amplifier-board-2x3w-class-d-audio-module-usb-dc-5v-pam8403","provider":"Wrsss","version":"1.0","type":"link"}