SOL Republic's just taken the wraps off of what it's calling the first "professional-caliber" headphones it's made: the Master Tracks XC. When it comes to audio chops, the company says it created a new XC Sound Engine design for the cans that grant them acoustic accuracy, reproducing deep bass and a strong, distortion-free mid-range. What's more, the over-ear headphones have been been "studio tuned" by
