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SP Acoustic

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SP Acoustic Strings

If you can gig night after night, your strings should be able to keep up. Martin SP strings are designed with the performer in mind. Made with high tensile strength core wire and finished with our highest quality wrap wire, our SP line of strings stands up to rigorous practice and performance schedules to deliver consistent true tone that you can count on song after song. Available in 80/20 Bronze and 92/8 Phosphor Bronze.

80/20 Bronze

Martin SP 80/20 Bronze acoustic guitar strings are made with our highest quality bronzed steel core wire and bronze wrap wire.

Weight E B G D A E Tension Model
Extra Light .010 .014 .023 .030 .039 .047 130.2 MSP3000
Custom Light .011 .015 .023 .032 .042 .052 147.6 MSP3050
Light .012 .016 .025 .032 .042 .054 160.5 MSP3100
Medium .013 .017 .026 .035 .045 .056 181.1 MSP3200
Extra Light 12 String 1-6 .010 .014 .023 .030 .039 .047 245.7 MSP3600
Extra Light 12-String 7-12 .010 .014 .010 .012 .018 .027 245.7 MSP3600

92/8 Phosphor Bronze

Martin SP Phosphor Bronze acoustic guitar strings are made with the highest quality bronzed steel core wire and phosphor bronze wrap wire.

Weight E B G D A E Tension Model
High Tuning .010 .012 .008 .013 .017 .025 108.6 MSPHT10
Extra Light .010 .014 .023 .030 .039 .047 133.3 MSP4000
Custom Light .011 .015 .023 .032 .042 .052 151.7 MSP4050
Light .012 .016 .025 .032 .042 .054 164.8 MSP4100
Light/Medium .0125 .0165 .0255 .0335 .0435 .055 173.8 MSP4150
Medium .013 .017 .026 .035 .045 .056 186.2 MSP4200
Bluegrass .013 .017 .026 .036 .046 .056 188.3 MSP4250
Extra Light 12-String 1-6 .010 .014 .023 .030 .039 .047 249.6 MSP4600
Extra Light 12-String 7-12 .010 .014 .010 .012 .018 .027 249.6 MSP4600
Light - 3 Pack .012 .016 .025 .032 .042 .054 164.8 MSP4100PK3

Bass 92/8 Phosphor Bronze

Martin SP Phosphor Bronze strings are made with the highest quality bronzed steel core wire and phosphor bronze wrap wire.

Weight E B G D A E Tension Model
Light .045 .065 .080 .100 - - 191.1 MSP4800
Medium .045 .065 .085 .105 - - 201.5 MSP4850
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