Martin MA150 Authentic Acoustic Superior Performance 80/20 Bronze Guitar Strings - Medium 13-56 black-flat Winding Material: Nickel Plated Steel

Winding Material: Nickel Plated Steel

Switch Tip: Black

velocity and gate time settings per step

wide angle cardioid

Martin MA150 Authentic Acoustic Superior Performance 80/20 Bronze Guitar Strings - Medium 13-56 black-flat Winding Material: Nickel Plated SteelMartin Authentic Acoustic Superior Performance SP strings feature higher tensile strength and tin plated core wire on all six strings that enable a fuller and more balanced tone, quicker response and increased tuning stability. Our impeccable standards for acoustic guitar tone are embedded in our string design and precision manufacturing process. That's why we make our own.