摘要： 下面是 [耳机放大器电路及BOM]的电路图　　材料清单：P1 = 22K R1 = 560R R2 = 10K R3 = 10K R4 = 12K R5 = 2.2R R6 = 2.2R R7 = 22R-1/2W Q1 = BC337 Q2 = BC327 Q3 = BC337 Q4 = BC327 C1 = 1µF-63V C2 = 100µF-25V C3 = 100µF-25V C4 = 100µF-25V C5 = 22pF-63V C6 = 22µF-25V IC1 = NE5532 J1 = RCA audio input socket (责任编辑：电路图)