Martin Authentic SP 80/20 Bronze Acoustic Guitar Strings

With high tensile strength core wire and tin plating for added corrosion resistance, these Martin Authentic strings will provide consistently true tone.

These strings are engineered with the performer in mind and they will always stand up to rigorous practice and performance schedules. Martin starts with the highest tensile-strength core wire, then tin-plate it on all six strings for added corrosion resistance; because what you don't see matters! When coupled with the highest quality wrap wire you get consistent true tone that you can count on song after song.

Get an overview of Martin Authentic Acoustic strings:


Martin Authentic SP 80/20 Bronze Acoustic Guitar Strings offer excellent tuning stability, corrosion resistance and great playability.
WARNING: Cancer and Reproductive Harm - www.p65Warnings.ca.gov.

Extra Light 6-String
- Gauge: 10-14-23-30-39-47

Custom Light 6-String
- Gauge: 11-15-23-32-42-52

Light 6-String
- Gauge: 12-16-25-32-42-54

Medium 6-String
- Gauge: 13-17-26-35-45-56

Bluegrass 6-String
- Gauge: 13-17-26-36-46-56
Dimensions and Weight in Packaging
Bluegrass, MA240
Shipping Weight: 0.09 lbs
Shipping Dimensions: 6 x 5 x 1 in
Manufacturer Part Number (MPN): 41Y18MA240
Custom Light, MA175
Shipping Weight: 0.08 lbs
Shipping Dimensions: 5 x 5 x 1 in
Manufacturer Part Number (MPN): 41Y18MA175
Extra Light, MA170
Shipping Weight: 0.08 lbs
Shipping Dimensions: 6 x 5 x 1 in
Manufacturer Part Number (MPN): 41Y18MA170
Light, MA140
Shipping Weight: 0.09 lbs
Shipping Dimensions: 6 x 5 x 1 in
Manufacturer Part Number (MPN): 41Y18MA140
Medium, MA150
Shipping Weight: 0.25 lbs
Shipping Dimensions: 6 x 5 x 1 in
Manufacturer Part Number (MPN): 41Y18MA150
Custom Light, MA175, 3-Pack
Shipping Weight: 0.25 lbs
Shipping Dimensions: 6 x 5 x 2 in
Manufacturer Part Number (MPN): 41Y18MA175PK3
Extra Light, MA170, 3-Pack
Shipping Weight: 0.25 lbs
Shipping Dimensions: 6 x 5 x 2 in
Manufacturer Part Number (MPN): 41Y18MA170PK3
Light, MA140, 3-Pack
Shipping Weight: 0.25 lbs
Shipping Dimensions: 6 x 5 x 2 in
Manufacturer Part Number (MPN): 41Y18MA140PK3
Medium, MA150, 3-Pack
Shipping Weight: 0.27 lbs
Shipping Dimensions: 6 x 5 x 2 in
Manufacturer Part Number (MPN): 41Y18MA150PK3

For support or warranty questions, please contact the manufacturer:
Phone: 610-759-2837

Martin Authentic SP 80/20

These strings are engineered with the performer in mind and they will always stand up to rigorous practice and performance schedules. Martin starts with the highest tensile-strength core wire, then tin-plate it on all six strings for added corrosion resistance; because what you don't see matters! When coupled with the highest quality wrap wire you get consistent true tone that you can count on song after song.

Martin Authentic SP 80/20 Bronze Acoustic Guitar Strings offer excellent tuning stability, corrosion resistance and great playability.

Bluegrass, MA240

$7.49
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