This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
NE5532 曾经被称为运放之王, 以频带宽, 动态特性好, 在早期的音响电路里是音频信号前级放大的优秀电路.
但是 TDA3116D2 作为高级的 D 类功放, 可以直接连接信号源, 已经不需要前级放大这些电路了.
推荐参考一下评估板的电路