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 REGULAR SLINKY 10-46
ERNIE BALL .020 PLAIN SINGLE STRING
ERNIE BALL 2215 SKINNY TOP/HEAVY BOTTOM 10-52
ERNIE BALL EARTHWOOD MEDIUM LIGHT 12-54
ERNIE BALL .022 WOUND SINGLE STRING
ERNIE BALL EARTHWOOD PHOSPHOR BRONZE ACOUSTIC 12-54
ERNIE BALL .040 WOUND SINGLE STRING
ERNIE BALL .018 WOUND SINGLE STRING
ERNIE BALL NOT EVEN SLINKY 12-56
ERNIE BALL .052 EARTHWOOD SINGLE STRING
ERNIE BALL .052 WOUND SINGLE STRING
ERNIE BALL POWER SLINKY 11-48
D'ADDARIO J813 4/4M PRELUDE VIOLIN SINGLE STRING D 4/4
ERNIE BALL HYBRID SLINKY 09-46
ERNIE BALL .038 EARTHWOOD SINGLE STRING
DADDARIO EJ17 PHOSPHOR BRONZE
DADDARIO ASCENTE VIOLIN 4/4 MEDIUM SET
ERNIE BALL .032 WOUND SINGLE STRING
DADDARIO EZ890 85/15 BRONZE
DADDARIO EZ910 85/15 BRONZE 