CONDUCTOR MATERIAL

OCC Copper (Ohno Continuous Casting)

Copper OCC

Specifications

Short nameOCC
FamilyCopper
Purity99.997% (4N7) typical
Manufacturing processOhno Continuous Casting (heated-mold continuous casting)
Conductivity102 % IACS
Resistivity1.69e-8 Ω·m
Tensile strength200 MPa

Overview

Single-crystal copper produced by the Ohno continuous-casting process — a heated mold pulls the casting in a way that lets each grain grow up to 125 m without grain boundaries. The result is a conductor with orders-of-magnitude fewer crystal interfaces than OFC over headphone-cable lengths.

Typical uses

  • premium headphone cables
  • premium IEM upgrade cables
  • tonearm wire
CABLE

OCC Copper IEM Cable, 4.4mm balanced

0.78mm 2-pin → 4.4mm Pentaconn balanced

CABLE

OCC Copper Headphone Cable, 4-pin XLR balanced

2× 3.5mm TRS → 4-pin XLR balanced

CABLE

Balanced XLR Interconnect

XLR3 male → XLR3 female

CABLE

OCC Copper Speaker Cable

Banana / spade → Banana / spade

CABLE

75Ω Coaxial S/PDIF Cable

RCA → RCA