Martin's Authentic Acoustic SP strings use a higher-tensile, tin-plated core on all six strings for steadier tuning and a fuller, more balanced tone. 92/8 phosphor bronze in an extra light gauge for the easiest feel.
SPECIFICATIONS
Strings
Gauges: .010, .014, .023, .030, .039, .047
Wrap: 92/8 phosphor bronze
Core: tin-plated SP







