D'Addario EJ47 Overview This set of EJ47 Normal Tension 80/20 Bronze Pro-Arte Nylon Classical Guitar Strings from D'Addario features 80/20 bronze wound basses for bright acoustic tone, comfortable feel, and dynamic projection.Pro-Arte is D'Addario's premium line of classical guitar string sets. It features treble strings sorted by a computer-controlled laser machine, which performs diameter and tension measurements, and basses wound using 80/20 bronze wire on a multi-filament nylon core. These strings produce true-sounding, precise trebles and bright basses with a projecting tone.Normal tension offers a balance of volume and comfortable resistanceBasses are wound using 80/20 bronze on a multi-filament nylon core for bright, projecting tone, and enhanced consistencyLaser-sorted clear nylon treble strings for consistent, precise intonationEnvironmentally friendly, corrosion-resistant packaging keeps strings freshMade in the USA
