[問題] 請問關於推動喇叭的放大電路
就是我最近再做一個電路，把很小的樂器訊號輸入，然後以喇叭輸出，
一開始，我用OP741回授放大(中間都有加COUPING電容) 可是這樣出來的聲音都會
失真，然後用LM386照DATASHEET上的GAIN = 20方式連接(輸入端擅自加上一個COUPING
電容) 這樣出來的聲音卻是很漂亮的，請問為什麼OP741作的回授放大電路沒有辦法
像LM386一樣呢?
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