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 .054 WOUND SINGLE STRING
THOMASTIK-INFELD CELLO STRINGS 147 DOMINANT 1/4
ERNIE BALL EARTHWOOD SILK&STEEL 13-56
DADDARIO ECG23 CHROMES
ERNIE BALL .052 WOUND SINGLE STRING
ERNIE BALL .024 PLAIN SINGLE STRING
DADDARIO EZ900 85/15 BRONZE
ERNIE BALL EARTHWOOD PHOSPHOR BRONZE ACOUSTIC 11-52
DADDARIO EXL220-5
ERNIE BALL EARTHWOOD EXTRA LIGHT 10-50 