80/20 Bronze, the original acoustic alloy introduced to by John D'Addario Sr. and John D'Angelico in the 1930s is a popular alloy for recording due to their crisp, deep and projecting tone and appeal to many traditionalists and vintage enthusiasts for their historical significance.
Medium: .013, .017, .026, .035, .045, .056
Light: .012, .016, .024, .032, .042, .053