Description Orange Crush Cables are manufactured using the finest components available, including the highest grade oxygen-free copper for optimum signal clarity and articulation. 1/4″ jacks are nickel-plated for extra corrosion resistance while allowing for great conductivity while the various layers of shielding reduce handling noise and electromagnetic interference to a minimum. The outer sleeve is heat shrunk at either end, protecting the inner cable against damage on stage and reducing stress and strain on the terminals.