Re: need help choosing between line level cables

"Eeyore" wrote ...
> NONE of the home AV style equipment I have here has a
> mains earth, ALL of it has only 2 conductor mains leads.

It is not the mains power that is earthed/grounded.
It is the RF input cable (from either the community
cable distro system, or from the TVRO antenna).
Both are required to be bonded to earth by local
regulations virtually across the USA.  It is a big
problem over here on our side of the pond.

TVRO antennas are not as much problem, because
they are grounded right at the customer's premises.
But cable systems are frequently grounded farther
away (back at the nearest main amplifier, etc.) and
voltage differentials on the order of 50V are not
unheard of (between the cable ****eld and local
ground.)