Martin Authentic 80/20 Medium 13-56
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Martin Authentic Acoustic Superior Performance SP 80/20 Bronze strings in Medium 13–56 gauge offer a fuller, more balanced tone for your acoustic guitar. Higher tensile strength and tin-plated core wire on all six strings support quicker response and increased tuning stability.
- Series: Authentic Acoustic Superior Performance SP
- Winding material: 80/20 bronze
- Gauge: Medium, 13–56
- Higher tensile strength and tin-plated core wire on all six strings
- Designed for balanced tone, quicker response, and increased tuning stability
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