1/0 AWG GP Diamond Edition CLEAR

Experience unmatched conductivity and durability with GP Car Audio Diamond Edition Ultra Pure Copper Wire, engineered, tested, and manufactured in the USA to exceed industry standards.

TRUE 1/0 AWG OFHC Copper Power Cable

Our cable uses 99.99% OFHC (Oxygen‑Free High Conductivity) pure copper, delivering maximum current transfer, ultra‑low resistance, and exceptional flexibility. No CCA, no mixed metals, just real, certified copper.

Performance Ratings

• Rated at 350 amps @ 25 feet

• ASTM B‑3 — Certified soft‑annealed, high‑purity copper

• ASTM F‑855 — Industrial‑grade jacket and construction standard used for grounding and high‑fault‑current applications

• Temperature Range: –75°C (–103°F) to +105°C (221°F)

  • Extreme‑cold flexibility

  • High‑heat resistance

  • Rugged, industrial‑strength insulation

Key Features

• True AWG copper cable (full‑spec conductor size)

• Ultra‑flexible jacket for easy routing in tight installs

• High strand count for superior conductivity and bend radius

• Made in the U.S.A. with certified materials

Built for high‑performance car audio systems, competition builds, and demanding electrical environments, this cable delivers the reliability and power transfer your setup deserves.