I havn't done much research into speaker cables but enough to know you can spend a hefty amount on them.I'm still pretty new to higher end gear and have lots to learn and little to spend.Recently I made up a pair using 14ga wire that is copper on both strands rather than typical speaker wire with one side being silver in color,I started with 100 feet and cut it into 4-25ft lengths and use 2 for each cable,1 wire for positive and 1 for negative,It seemed to make quite a (positive)difference in the sound of my maggie SMGs.Now for the questions-Is it wire size or insulation or a combination of both that makes a better cable(wire) or am I just a newbie without a clue? Thought I'd mention that the wire I used was actually intended for outside use electrical lighting etc.and was about $12 for the 100 ft.