I'm in the low cost club. NOT necessarily the anything works club. There are inexpensive 12ga and 14ga cable solutions, but they are not all created equal. And there are 10ga and 8ga solutions that sound very good but most are impractical and, in some cases, just dangerous do to their inflexibility.
The biggest keys to inexpensive speaker cable are to use stranded, untinned pure copper (never anything else), never terminate, keep them short, experiment with how many twists per foot of one conductor around the other. If the cable absolutely must be terminated, use crimps, never solder. IMO, NEVER USE SILVER IN ANY AUDIO CIRCUIT. I think it can cause a brittleness and brightness in the treble.
The biggest keys to inexpensive speaker cable are to use stranded, untinned pure copper (never anything else), never terminate, keep them short, experiment with how many twists per foot of one conductor around the other. If the cable absolutely must be terminated, use crimps, never solder. IMO, NEVER USE SILVER IN ANY AUDIO CIRCUIT. I think it can cause a brittleness and brightness in the treble.