回复 134楼正天飞云的帖子查无源电感回路屏蔽技术并非始于MIT-Shotgun, 但1988年以此闻名, 本人在1989年亦以此闻名, 此后有笔者的Magic Link系列(1989)、NBS(1993)....Aurum“藤萝系甲(Wisteria Trail)”(2000), 还有Siltech, Venture和近年的Entreq…最近就把Entreq网页上的Shotgun技术改名为External Earth Drain System (EEDS), 另相信由于无法解决Shotgun焊法 在高频衰减方面的缺点, 据悉Entreq把基本屏蔽网的使用都放弃了....
NBS稱之為“Passive Frequency Inductance Wiring Network”, 以下是NBS的描述:
Every NBS cable employs the circuitry of a Passive Frequency Inductance Network (PFIN) combined with hand-made construction and unconventional use of silver shielding. The higher the line of NBS cable, the more sophisticated the PFIN circuitry becomes. Unique wire-weave patterns and the use of the finest materials available contribute further to the world-renowned NBS Sound.
A look inside the cable
NBS在1993年将MagicLink的3手辫改成4手辫
以下是Entreq最新的描述, 把“Shotgun技术” 刪掉了:
This entails the shielding / drain wire not being connected to the device’s negative pole, but is connected to another external earth point. One of our ground boxes is suggested.
This way, we drain off the interference/noise that the shielding absorbs to the ground outside of the signal paths, instead of the usual mixing it together with the signal wire at the connection to the devices.
外部接地排流系统（EEDS），以下是Entreq的描述：
这意味着屏蔽/排流线不连接到设备的负极，而是连接到另一个外部接地点。我们建议使用我们的接地盒。
这样，我们排除了屏蔽吸收到信号路径外部的接地的干扰/噪声，而不是通常在与设备的连接处与信号线混合。
