simao;
With the lengths you mentioned, audiophool BS aside, two different lengths will make no difference that any human ear can discern. The only real consideration is the gauge you use as it has more of an effect on the sound than length does. From my personal experience, 10 gauge tends to favor bass at the expense of highs, and 14-16 tends to be brighter. I have always had the best results using 12 to 14 gauge wire. If you are into making your own cables, check out http://www.knukonceptz.com/. They sell quality wire and connection accessories at realistic prices.
With the lengths you mentioned, audiophool BS aside, two different lengths will make no difference that any human ear can discern. The only real consideration is the gauge you use as it has more of an effect on the sound than length does. From my personal experience, 10 gauge tends to favor bass at the expense of highs, and 14-16 tends to be brighter. I have always had the best results using 12 to 14 gauge wire. If you are into making your own cables, check out http://www.knukonceptz.com/. They sell quality wire and connection accessories at realistic prices.