AKG, a brand of Harman, has introduced a new line of Quincy Jones Signature headphones. The lineup includes the Q701 “reference-class” over-the-ear headphones featuring a flat-wire voice coil, a Varimotion two-layer diaphragm, and neodymium drivers, the Q460 portable on-ear mini headphones featuring a folding design, a detachable cable, and an iPhone-compatible in-line microphone and remote, and the Q350 in-ear headphones with three included…