ELECTRIC GUITAR STRING SET 8-string electric guitar set D Addario NYXL0980 (9 - 12 - 16 - 24 - 32 - 44 - 60 - 80). 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.