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BD7JAC:王老师,话放和耳放除了输入输出阻抗不同,还有什么区别?话放能改成耳放吗? (2016-06-09 18:07)
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BD7IWW:1.话放是一个声道。2.话放是低电平,输入仅几到二十几毫伏,输出仅一两百毫伏。3.话放输出阻抗更高,一般达几十千欧。而耳放是高电平的,输入在数百毫伏到一两伏。输出功率要求有100毫瓦 .. (2016-06-09 20:29)