Our Autobahn cable series has our most advanced technical solutions, where we have used, for example, the best copper or silver classified as OCC (UP OCC stands for Ultra-Pure, Ohno Continuous Casting).
There are also some classes just below that we also use, as Linear Crystal-Oxygen Free Copper (LC-OFC/LCOF), Oxygen-free high thermal conductivity (OFHC) and OFE (Oxygen-Free Electronic Copper).

With a technically maximized solution, there are also technically better conditions for a better function, which should result in a better sound image.