These RCA plugs are constructed from UP-OCC copper, UP-OCC stands for Ultra-Pure, Ohno Continuous Casting so you really cannot buy a better purity material when it comes to copper. They then go through cryogenic and demagnetizing treatments. The outer shell comprises of a natural fibre vacuum compressed paper similar to that used on their capacitors.
Specifications:
Can receive cables up to 7.9mm in diameter
Overall diameter: 13mm
Length: 46mm
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