How to tell the difference between two cables ?

Not me. I e-mailed Straightwire recently, devout two weeks ago and received no response at all.

Why not listen and take a stab at it? Is the "2" better supposedly?

Thanks for your answers, i will email straight wire. I was talking about physical discription not sound.Ya,ll have a great day.

where did you purchase the cables?

I purchased them at an autherized dealer a few years ago in new orleans ,they clearing out straight wire cables and i bought 4 pairs of interconnect, i was in a hurry and once i got home i noticed they were alittle different. Anyway i got my answer from a friend v2 has a thicker clear coating and the plugs are a little more heavy duty thanks again.