Which version should I get coiled or stright? What are the differences?
There is $50 off in sound professionals from $160.
Go for the straight. I had the coiled, and the cord was not the best. It was slightly too short, and the coiling was more annoying than it was helpful. If you travel a lot with them, then go for the coiled, but for home use, The S is the way to go. Plus, the Audio Technica straight cable is, imo, of much nicer quality than the coiled.