20AWG Ultra-Pure OCC Litz Silver
20-AWG per polarity in a 4-wire configuration
X4-wire 20-AWG pure silver+copper OCC Litz 50/50 hybrid
Cutting-edge single-crystal 7N OCC ultra-Pure copper $ silver
Litz geometry with 7 insulated bundles
Extremely-high strands count
Cryogenically & enameled treated
Custom ultra-soft and flexible TPU insulation
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UP-OCC TECHNOLOGY (2016 article)
The unidirectional UP-OCC has low electric resistance and practically no crystal boundaries. Accordingly, it can transmit electrical signals faster
and with less distortion than ordinary OFC and silver wires. These features make the pure OCC copper and silver the state-of-the art conductor materials for the audiophile cable industry.
WHAT IS UP-OCC?
UP-OCC stands for Ultra-Pure, Ohno Continuous Casting.
The UP-OCC process for refining copper and silver was developed and patented by Professor Ohno of the Chiba Institute of Technology in Japan.
The license to use this manufacturing process is incredibly popular for the production of wire and cable products for the audio/video industry.
In conventional processing, hot molten copper/silver is poured into a cooled mold for extrusion, resulting in multiple, fractionated crystal structure.
While the copper/silver may be "pure" in the sense of mensuring gas impurities in the copper/silver in comparison to standard copper/silver refining techniques, Oxygen-Free Copper (OFC) has undesirable effects that lead many to use more expensive materials such as silver for their conductive strands.
As developed for A/V cable use, the OCC process utilizes a heated mold for casting and extruding. With cooling taking place in a separate process, the result is a larger crystal size and increased purity that approaches the 6N, 99.9998%!
In another way, traditional copper/silver has oxygen impurities of 200 to 500 parts per million (PPM), while conventional OFC copper/silver reduces to less than 10 PPM. With the OCC process, the figure is cut in half to less than 5 PPM of oxygen and less than 0.25 PPM of hydrogen (compared to 0.5 PPM for OFC).
With these results, the OCC process creates "ultra-pure" copper and silver.
THE BENEFITS OF UP-OCC
• An accurate unidirectional copper and silver crystal that is as free from impurities as possible to prevent corrosion
• Flexibility and fatigue resistance without impairing conductive characteristics
• Low electrical resistance
• Rapid signal transmission
• Non-crystal boundaries