Back in January, we reviewed the innovative Audeze iSine 10 in-ear planar magnetic headphones and thought they were pretty amazing. In fact, we think Audeze’s Sine and iSine headphones are still the best expression of what can be done with headphones and the Lightning jack. For those still on the fence, Audeze just announced a new colorway for the iSine10 which will be exclusive to Apple’s online store and retail locations. The new Black/Steel…