诺普声的胆机，到底是不是真的胆机？

　　诺普声的是假胆机，这个品牌就是胆机界的败类，4个胆管直接了灯丝当灯泡用，实际还是石机，买过一个拆开开看了结构！我以为是个例，后来找做胆机的发烧友给改了！很多发烧友对诺普声都嗤之以鼻！

　　这种胆机应该叫做“灯机”，电子管就是点了个灯丝做装饰，并不用来干活。

　　三百多块钱还带耳放带蓝牙，胆机真做不到那么便宜啊，这点钱买变压器都不够。再看参数，6n1推6p1出25瓦[呲牙] 恐怕背后藏着一片1875在默默的出力吧。。。

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　　胆机的主要成本是输出变压器和电源变压器，几百元的胆机也能做出来，问题是功率很小，一般几W的输出功率，这是因为胆机的效率非常低，可以算单端胆机耗电250W，输出大约8W*2,。而提到这个品牌的胆机，我再淘宝也有看过，其实是胆前级搭配集成功放后级，理论上叫胆石结合，不是纯胆机。因为后级采用集成电路功放，成本很低，也无需输出牛，功率效率比较高，所以用了比较小的电源变压器。但声音和纯胆机比较有较大不同。另外我拆解过一些低价胆机，其实是纯石机，而上面插的几个电子管其实只是接了灯丝，装饰用的。

　　要分辨是否是真胆机很容易，如果号称是纯胆机看是否有输出变压器，体积比较大。如果没有则为晶体管或者集成功放。像前面说得只接灯丝的胆机，拔掉电子管依然能正常工作，就无从谈起是胆机了。

　　诺普声pm5功放机是真正的胆机吗？

　　不是纯胆机。因为后级采用集成电路功放，成本很低，也无需输出牛，功率效率比较高，所以用了比较小的电源变压器。但声音和纯胆机比较有较大不同。另外我拆解过一些低价胆机，其实是纯石机，而上面插的几个电子管其实只是接了灯丝，装饰用的。