Oxygen-free copper (OFC) has been recognised for many years as an
excellent material for use as a conductor. It allows the signal to pass
along its length with minimal loss. Many cables also include two separate
shields — one made of braided copper
which minimises RF interference and
one made of foil to minimise against
EM interference. It stands to reason –
the better the cable, the less the
interference, thus improving
performance.
The plug is an extremely important