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 EARTHWOOD 12 STRING MEDIUM
ERNIE BALL .038 WOUND SINGLE STRING
DADDARIO ECG24-7 CHROMES
ERNIE BALL .044 WOUND SINGLE STRING
ERNIE BALL .046 EARTHWOOD SINGLE STRING
DADDARIO EJ17 PHOSPHOR BRONZE
ERNIE BALL .018 WOUND SINGLE STRING
DADDARIO ACCESSORIES DP0002B BASS PRO WINDER
ERNIE BALL REGULAR SLINKY BASS 50-105
ERNIE BALL .014 PLAIN SINGLE STRING
DADDARIO EPS160SL PROSTEELS
DADDARIO EJ26 PHOSPHOR BRONZE
DADDARIO EPS160-5 PROSTEELS
ERNIE BALL .013 RPS PLAIN SINGLE STRING
ERNIE BALL EARTHWOOD PHOSPHOR BRONZE ACOUSTIC 11-52
ERNIE BALL 050 SLINKY ACOUSTIC SINGLE
DADDARIO PRO-ARTE J58 LM VIOLA STRING SET, LONG SCALE, MEDIUM TENSION
ERNIE BALL .024 PLAIN SINGLE STRING
ERNIE BALL EARTHWOOD PHOSPHOR BRONZE ACOUSTIC 13-56 