XLO Limited Edition 1 UPOCC-6N Copper Solid Core Audio Cable 1m RCA (pair, used like new)

Copper Conductors

• Type and Purity: 99.99997% pure (6N, or "six-nines") laboratory-grade copper, manufactured via Ohno Continuous Casting (OCC) process. This results in ultra-long crystal structures (up to 700 feet per crystal) to minimize grain boundaries that could impede electron flow and introduce sonic artifacts.
• Additional Treatments: The copper undergoes proprietary cryogenic treatment (ultra-low temperatures followed by gradual warming) to refine molecular structure, plus oxygen-free (OFC) processing to prevent oxidation. In some descriptions, it's specified as polished or Ultra-Pure OCC (UPOCC-6N) copper for enhanced conductivity and reduced impurities like iron or sulfur.

Dielectric

• Material: DuPont Teflon (PTFE, polytetrafluoroethylene) or advanced variants like Teflon AF (amorphous fluoropolymer), known for its exceptionally low dielectric constant (around 2.1) and fast energy dissipation to avoid signal smearing or phase shifts.
• Application: The conductors are often wound around Teflon tubes or extruded directly with Teflon insulation, providing ultra-low capacitance (typically under 50 pF/m) and shielding against electromagnetic interference (EMI/RFI).