D'Addario Exp16. Exp coated phosphor bronze for warm, bright, well balanced acoustic tone and 4 times more life. Exp coated phosphor bronze acoustic guitar strings provide longer life and increased durability coupled with the brightness, clarity, and sensitivity you've come to expect from.
Xt phosphor bronze offers that and more, boasting enhanced break resistance, better pitch stability, and longer life than our standard phosphor bronze strings. The exp16 coated phosphor bronze acoustic guitar strings delivers the ideal balance of volume, projection and comfortable.