Personal high-end audio gear maker Etymotic Research has added a new range-topping MicroPro Series set of earbuds in the ERï4PT. Made for audiophiles and sound engineers, each set of the new headphones comes with a channel-matching compliance graph signed off on by an Etymotic engineer who personally tuned the balanced-armature drivers. The adjustment is paired with what the company claims is the highest noise isolation of all its earphones.
