There is turmoil in the world of headphones. As rumors swell that Apple will be removing the 3.5mm analog headphone jack from its next version of the iPhone, many are worried that they will be forced to carry extra dongles or choose between a limited set of headphones that are “iPhone compatible.” Others argue that the 3.5mm jack is old tech overdue for replacement, and Apple is the best company to do it. One thing is for sure – if the switch to Lightning for audio is to succeed, we want some proof that it will be worth the hassle. With the Sine ($449 – $499) and its Cipher Lightning cable, Audeze has given us a peek into the future of iPhone listening.{/exp:char_limit}