The D'Addario EJ41 Phosphor Bronze strings are an extra-light gauge set specifically designed for 12-string acoustic guitars, featuring a 9-45 gauge profile. This is the lightest 12-string set offered by D'Addario, making it the ideal choice for vintage instruments that require lower tension or for players who want maximum ease of playability and effortless chord fretting. Utilizing the classic phosphor bronze alloy, these strings produce a warm, bright, and harmonically rich tone that brings out the shimmering, orchestral quality of a 12-string guitar. Despite their lighter tension, the EJ41s maintain excellent intonation and tuning stability thanks to their high-carbon steel hex cores, providing a comfortable and delicate feel without compromising the lush, resonant sound signature D'Addario is known for.