Archived from groups: rec.audio.high-end (
More info?)
Jade wrote:
> Hi there. I was just wondering what made XLR terminated cables cost so much
> more than RCA terminated ones. Is there a difference in terms of connection
> or sound quality?
XLR cables are most often used in balanced systems, using three
conductors as opposed to two in an unbalanced RCA cable. Two of these
carry the signal in differential form (one line is a mirror image of the
other): the shield is just for shielding and does not carry any signal.
XLR connectors will cost more than RCA connectors for the same
materials: the construction is more complex and there's more material in
the connectors. The cable will also cost more due to the extra connector.
However, you're probably looking at "audiophile" cables. Only top-end
domestic hi-fis use balanced lines, and owners of such systems often
have more money than sense when it comes to buying cables.
Most pro audio installations (PA etc) use balanced lines to guard
against the hostile environment (high levels of EMI from lighting
dimmers etc) and to cut out ground loops (the mixing console may be on a
different circuit to the source electronics).
If you need an XLR cable, I'd go with a standard microphone cable or PA
patch cable. Most of the music on your CD started its journey from the
singer to you down one of those, so it may as well finish the same way!
--
Mark.
http://tranchant.plus.com/