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Martin Authentic Acoustic SP® Bronze Guitar Strings

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.

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.

List price

$6.49

Sale Price: $4.49

$6.49

$6.49

Sale Price: $4.49 - $6.49

No Export Shipments. Domestic Only.

List price

$6.49

Sale Price: $4.49

$6.49

$6.49

Sale Price: $4.49 - $6.49

STRING GAUGES AND TENSION
GaugeEBGDAETensionModel
80/20 BRONZE
Extra Light .010 .014 .023 .030 .039 .047 135.8 MA170
Custom Light .011 .015 .023 .032 .042 .052 153.7 MA175
Light .012 .016  .025 .032 .042 .054 167.3 MA140
Bluegrass .012 .016 .025 .035 .045 .056 179.8 MA240
Medium .013 .017 .026 .035 .045 .056 189.6 MA150
Extra Light 12-String

.010

.010

.014

.014

.023

.010

.030

.012

.039

.018

.047

.027

261.7 MA180
Light 12-String

.012

.012

.016

.016

.025

.010

.032

.014

.042

.020

.054

.030

324.0 MA190
SILK & STEEL FOLK
Custom .0115 .014 .023 .028 .038 .047 122.2 MA130
92/8 PHOSPHOR BRONZE
Extra Light .010 .014 .023 .030 .039 .047 137.0 MA530
Custom Light .011 .015 .023 .032 .042 .052 155.1 MA535
Light .012 .016 .025 .032 .042 .054 168.5 MA540
Light/Medium .0125 .0165 .0255 .0335 .0435 .055 179.3 MA545
Medium .013 .017 .026 .035 .045 .056 190.9 MA550
Extra Light 12-String

.010

.010

.014

.014

.023

.010

.030

.012

.039

.018

.047

.027

263.3 MA500
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