Passive End Coil Technology:
The Passive End Coil is a passive Tesla Coil that is applied at the end, just before the connector(s) on Ansuz Acoustics Ethernet and USB cables.
Before we discuss this specific type of Coil, let's first explain the basic principle of every Tesla Coil technology from Audio Group Denmark. The Tesla Coil is a component consisting of 2 coils, a coil and a counter-coil. The counter-coil is wound in the opposite direction compared to the coil. Ansuz also calls this principle the 'Double Inverted Coil'. The principle of Tesla Coils can be compared to the principle behind noise-cancelling headphones. Noise-cancelling headphones pick up external noise at certain frequencies and then add it out of phase to the signal, thereby cancelling out these frequencies.
Tesla Coils do the same, except now it concerns electronic noise rather than literally "audible" noise such as wind or aircraft engines. The special thing about electronic noise is that you don't actually hear it until you remove it. After that, you notice that you hear more layers in the recording and that there is space and air between everything happening in the recording. The more noise you remove, the stronger this effect becomes and the more you get from the recording and truly extract what is in your music. Returning to the noise cancelling effect, a Tesla Coil ensures that the noise passes through the coil and thereby activates the counter-coil. Because the counter-coil is wound in the opposite direction, it imitates the noise but out of phase, thereby cancelling out the initial noise peak. One or more Tesla Coil(s) are placed in parallel to the signal path; the signal does not pass through all the coils, but rather the coils 'pick' the noise from your conductors from the side. All types of Tesla Coils are supportive and work together; the more Tesla Coils in your setup, the more noise cancelling and the more musical the sound.
Passive End Coil Technology is found exclusively on the Ethernet cables and USB cables from Ansuz Acoustics. These are Tesla Coils that are applied just before the connector(s), hence the name 'End' Coil. The signal is provided with less noise just before it reaches the endpoint, and (on cables with more than 1 End Coil) is immediately cleaned as soon as it enters the cable through the Passive End Coil, also just before it reaches the endpoint.