Very simple: Lower gauge = thicker wire = lower likelihood that the cable will adversely affect the sound. To calculate the gauge you need, see:
www.pcavtech.com/techtalk/wire_size/index.htm
The 12-gauge at Home Depot runs 30 cents a foot, last time I checked. There is a school of thought that says you won't find anything better on the market at any price for most uses.
www.pcavtech.com/techtalk/wire_size/index.htm
The 12-gauge at Home Depot runs 30 cents a foot, last time I checked. There is a school of thought that says you won't find anything better on the market at any price for most uses.