天气预报 > 其他 > 合并胆机有必要再加个前级吗
合并胆机有必要再加个前级吗
更新时间: 2020-09-26 00:00:00  

没必要。胆,是指电子管。胆机,指电子管放大器。因其将声音放大后的失真较小,被广泛应用在音响行业。 它的功率放大器由前级和后级两个部分组成,前级负责信号放大,后级负责功率放大。合并机的前级和后级装在一个机箱里。所以,合并机已经内置前级,没必要再安装前级。

关键词: 合并 必要

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