Martin's Authentic Acoustic SP strings use a higher-tensile, tin-plated core for a fuller, more balanced tone, quicker response and steadier tuning. This is the extra light 12-string set in 92/8 phosphor bronze.
SPECIFICATIONS
Strings
Gauges: .010/.010, .014/.014, .023/.010, .030/.012, .039/.018, .047/.027
Wrap: 92/8 phosphor bronze
Core: tin-plated SP
Strings: 12
Total tension: 263.3 lb







