Since a few years I have a legendary KORN & MACWAY SERVO-SOUND Cybernetic preamplifier with its 2 active speakers.
But unfortunately I only own one of the 2 proprietary cables so I'm unable to listen to it (or only on 1 of the 2 speakers).
And these cables are nearly impossible to find (I've been searching a lot and never found one).

So I decided to make another one by myself...

Servo-sound connection