JH Audio's in-ear monitors are no strangers to us. Since we first reviewed the JH16 Pro back in 2010, they've become our go-to set for music on the go, their pro-spec price tag the only real reason not to recommend them to anyone but the most dedicated of music lovers or musicians. Now comes the refresh, introducing JH Audio's new Freqphase technology to the JH16 Pro and JH13 Pro lines. Promising the world's first phase-coherent audio in an earphone, piping every part of the sound to your ear at the same time, the claim is a more accurate soundstage and more natural and authentic sound. Read on for our full review.