Martin® Authentic Acoustic® Flexible Core strings are designed to reduce finger fatigue and allow huge bends. They feature a lighter gauge version of our Superior Performance core wire combined with heavier wrap wire to deliver a full and balanced tone with increased flex and playability. Our impeccable standards for acoustic guitar tone are embedded in our string design and precision manufacturing process.
“Tuning to me is everything. And Martin makes the most consistent, most in-tune strings I could find. I love how they sound. I love how they feel, and more importantly my guitars love them.”
-Tommy Emmanuel
