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寻功放型号

Other Parts Discussed in Thread: TPA0211

想找一款音频功率放大器,基本要求:

5v供电的,可外接4-8欧姆,3-5W的喇叭; 

另:如果有两路选择的更好,就是可以让我一路模拟音频输入,两路模拟输出(分别接两个喇叭),做外置和内置喇叭的选择;

最好是现在大家都常用的型号;

请给与支持,谢谢