My first set of high end cables in the early 80s were from Randall Research, I've been convinced of their benefits ever since. Currently all my cables are Purist.
A little History lesson on, "High- End" cables:
Inquiring minds might want to know, how the High-End cable market all got started. Expiring minds? Well...... (http://www.theabsolutesound.com/articles/a-short-history-of-high-end-cables/)