ELECTRIC GUITAR STRINGS SET Electric guitar string sets D Addario NYXL1152 (11 - 14 - 18 - 30 - 42 - 52). D Addario NYXL guitar strings stretch more, sound louder, and tune better than any string you've ever played before. Conceived, refined, and manufactured by D Addario in New York, this newly designed, tear-resistant high carbon and smooth steel core provides a new level of freedom, confidence and power.