Pro-Arte’ Carbon is one of D’Addario’s most popular classical sets, providing superior intonation atop the perfect blend of tone, brightness, and projection. The twisted, multi-filament composite core of the Dynacore bass strings creates a brilliantly responsive attack with unparalleled intonation, while fluorocarbon trebles provide the brightest, most projecting tone of any D’Addario classical treble. The result is modern tonal projection and exquisite tonal character, beloved by classical players. This Normal Tension set is our best-selling tension, preferred for its balance of rich tone, comfortable feel, and dynamic projection.