Martin Guitar String Authentic Acoustic - SP - Phosphor Bronze Medium ( 13-56 )

Martin Authentic Acoustic SP® 92/8 Phosphor Bronze guitar strings are part of Martin’s improved range of acoustic guitar strings. Martin Authentic Acoustic SP® strings are engineered with the performer in mind and stand up to rigorous practice and performance schedules.

They are made with a high tensile-strength core wire, then tin-plated for added corrosion resistance. Combined with highest quality wrap wire they provide consistent true tone that you can count on song after song.

Martin Authentic Acoustic SP® strings offer excellent tuning stability, corrosion resistance and great playability.

Gauges: 13-17-26-35-45-56 Tension: 190.9