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RE: Is there really any advantage in balanced digital lines over unbalanced?

Posted by SBGK (A) on June 2, 2012 at 13:45:55

In Reply to: Is there really any advantage in balanced digital lines over unbalanced? posted by John C. - Aussie on May 31, 2012 at 21:13:23:

http://support.apple.com/kb/HT2743?viewlocale=en_US

the article above says you can get rid of ground loop induced noise by using xlr with pin 1 disconnected. I use this for vlink 192 to benchmark dac1.

extract below

Eliminate the path(s) of the current by using isolation transformers or by breaking the shield connections on the audio cables going into the computer. The most dramatic improvements are generally seen with this technique, as it essentially eliminates the offending currents, which are carried on the shields of cables connecting to analog audio equipment. If you use a balanced (XLR) interconnect, isolate the current by breaking the shield (pin 1) connection. Use a cable designed without this connection or a shield isolator adapter. If you use an unbalanced (RCA or 3.5mm) audio connection, use an isolation transformer. The next section of the article lists resources for these cables.
http://mqnplayer.blogspot.co.uk/

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