The balanced tension profile of NYXL0940BT creates an even response across all strings in the set when bending, strumming, fretting, and picking. The high carbon steel used in NYXL strings offers higher break strength, enhanced tuning stability, and accentuated mid-range frequency response.D'Addario NYXL electric guitar strings will bend farther, sing louder, and stay in tune better than any string you've played before. Envisioned, perfected, and manufactured by D'Addario in New York, this precision-engineered, break-resistant, high-carbon steel core and plain steel alloy delivers a whole new level of freedom, confidence, and power. NY Steel NY Steel is processed in D'Addario's exclusive wire facility in Farmingdale, New York. Through advanced machinery and processes, our premium high carbon steel delivers unmatched tuning stability and superior break resistance. Hex Core Construction Precision drawn hexagonal core was pioneered by D'Addario. This innovation allows the wrap wire to grip the core for superior dimensional stability, enchanted durability, and precise intonation. String Winding Technology String winding equipment is designed and built by D'Addario's engineering team, guaranteeing a production range of 500,000 to 700,000 strings per day. Digitally controlled string winding machines ensure productivity, accuracy and consistency. Wire Drawing D'Addario's in-house wire drawing machines produce musical instrument wire to our exact specifications. Control over materials, equipment, and quality allows us to deliver high performance products.