Frank joe, I use Tributaries Direct Series Loudspeaker wires SP2, and I am very happy with it however that Karma 12AWG Speaker Kable looks damn good. I might just try it on my next project.
If you want the real good stuff get TRIBUTARIES Direct Series Loudspeaker wires SP2.
http://www.belmonttv.com/html/speaker_wire.html
If you want a full 300ft spool then inquire here they might be able to get it to you much cheaper.
http://www.docdvd.com/