Has anyone ever tried cables made with OCC (Ohno Continuous Cast) Copper?
As others have pointed out, OCC copper does sound better (transparent, detailed and smooth) than anything I’ve tried. My system is wired with Audio Envy cables which uses OCC wire and priced reasonably. https://forum.audiogon.com/discussions/audio-envy-dang |
Thanks for your post but it appears PC-OCC is still being used by many long after Furukawa decided to cease the production. Interestingly, the PC-Triple C came from FCM (Fine Chemicals & Materials), part of the Furukawa Group and its wholly owned subsidiary. “FCM proposed copper for audio and video applications, which is obtained in a process similar to forging. As emphasized in the Acoustic Revive company literature, one of the first companies to offer complete cables using this kind of copper, the new process is clear reference to the Japanese tradition of forging swords. Copper wire is repeatedly compressed (struck), which reduces its volume by 70%. The strokes are made at a certain angle and direction, determined through experiments. This process is not so much concerned with removing copper impurities, as these would have been eliminated at an earlier stage, as with achieving the most compact arrangement of individual crystals, bridging the transitions between them, and therefore reducing a diode effect, i.e. uncontrolled electron hopping between the adjacent crystals. The repeated compression of copper also pushes out the air and oxygen molecules present in the material. The obtained copper has been called PC-triple C, from Pure Copper-Continuous Crystal Construction. In the final production stage, the conductors are subjected to an aging process, where larger crystals coalesce with each other, forming monocrystalline areas”.
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