I used to always use 12 guage until I read this article 5 years ago and built my own cables for about $50. So now I use these easy to make twisted pairs. Next to resistance and shielding low inductance is important for connecting long runs of speakers. These common shielded 14/4 cables come in twisted pairs...perfect for reducing inductance...and almost as inexpensive as ordinary 12 guage.


http://www.hometheaterhifi.com/volume_10_2/ultralink-CL414-cable-5-2003.html

John