You might go to the Moon Audio site and look at their Black Dragon speaker cable. I have a silver dragon power cord and it impresses well beyond its price. Very well constructed too. I did inquire about the Black Dragons and Drew Baird at Moon Audio specified the copper conductors as slow drawn six 9's copper sourced from Cardas. Dialectric is Teflon. Price would seem to make it a great value.
Just a thought.
Just a thought.