Pro-Arte strings are our the world's best selling and D'Addario's premium classical guitar strings. All Pro-Arte treble strings are sorted by a sophisticated computer-controlled laser machine which performs diameter/tension measurements and quality checks, insuring true sounding, precise trebles in every set. Pro-Arte basses are wound using silverplated copper on a multi-filament nylon core for consistent, warm-yet-projecting tone.

Diameter Tension
Item# Note inches mm lbs kg
J4601 E 0.0285 0.724 15.8 7.17
J4602 B 0.0327 0.831 12.0 5.44
J4603 G 0.0410 1.041 12.4 5.62
J4604 D 0.030 0.76 16.3 7.39
J4605 A 0.036 0.91 15.9 7.21
J4606 E 0.044 1.12 14.5 6.58