Re: need help choosing between line level cables

Richard Crowley wrote:

> "jakdedert"  wrote ...
> > I dimly comprehend what he's talking about.  Since there is no actual
> > earth ground at the unbalanced input--and no connection to the output
> > equipment ground--the ground connection plus the signal hot would seem
to
> > form a differential input.  Possibly there is some issue with his/my
> > logic, but it would seem to be feasible.
>
> In these days of home entertainment systems which include
> video equipment, the chances of a completely ungrounded
> system is also slim to none.  Whether video comes from a
> cable system or from a DBS satellite dish/receiver, they are
> very likely grounded, and a very common cause of ground-
> caused problems, notoriously hum. RF transformers which
> break this ground connection are becoming common in the
> home-theatre industry.

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

I'm talking about the CD player, DVD, cable TV tuner, VCR, Amplifier and
tape
deck. I dare say the screen of the incoming cable feed is grounded but
there's
no way for it to make a loop.

Graham