EJ45FF, normal tension, features Pro-Arté Carbon trebles and Dynacore basses for unsurpassed superior intonation with the perfect blend of tone, brightness, and projection. Experience the vibrant, projecting & contemporary tone of D’Addario’s Pro-Arté Carbon strings. Designed to the exacting specifications of our Pro-Arté nylon trebles, our fluorocarbon strings deliver unmatched superior intonation, a responsive attack and modern projecting tone. Paired with the bold and powerful Dynacore basses, Pro-Arté Carbons offer the ideal combination of tension and tone for today’s classical player.