Martin® 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.
- Guitar Type: Acoustic Guitar
- Number of Strings: 6
- Coated: No
- Gauges: .0115, .014, .023, .028, .038, .047
- Core Material: Tin-plated Steel
- Winding Material: Silk & Steel
- Winding Type: Round

ERNIE BALL .032 WOUND SINGLE STRING
DADDARIO EZ900 85/15 BRONZE
DADDARIO EXL170-5SL BASS SUPER LONG
ERNIE BALL EARTHWOOD MEDIUM LIGHT 12-54
DADDARIO EJ10 80/20 BRONZE
ERNIE BALL EARTHWOOD PHOSPHOR BRONZE ACOUSTIC 10-52
ERNIE BALL EARTHWOOD SILK&STEEL 13-56 