Passive 4+2+2 channel audio switch selector, can connect 4 groups of audio sources / 2 power amplifiers / 2 pair of speakers at the same time, convenient to compare their sound quality without plugging in and out cables repeatedly to avoid wearing the contact point of the sockets. The left and right channel of grounds are completely separated, adopting passive circuit and all soldered by pure handmade, switched by purely mechanically and manually, no impact on the sound quality, no need to worry about audio rendering or electromagnetic interference(so-called digtial sound), providing HiFi lossless audio without distortion.
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