Martin Authentic Acoustic - SP ...

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Martin Authentic Acoustic - SP - Phosphor Bronze Light (12-54)


In Stock

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Includes 30-Day Exchange & 3-Year Warranty

Buy with confidence: We're the 1st, and only, UK guitar retailer to offer a 3-year warranty & 30-day exchange as standard.

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Manufacturer's ID: MA540

These strings are engineered with the performer in mind and they will always stand up to rigorous practice and performance schedules. We start with our 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 our highest quality wrap wire you get consistent true tone that you can count on song after song.


Martin Authentic Acoustic SP® strings offer excellent tuning stability, corrosion resistance and great playability.

.012- .016- .025- .032- .042- .054
Tension 168.5

Customer reviews

Overall Rating 4.9/5 (14 reviews)

craig m. - 17/10/2021

Martin H. - 5/8/2021

Philip . - 7/5/2021

Great strings, smooth sound.

Geoffrey C. - 20/4/2021

Alasdair S. - 18/2/2021

Excellent tone and weight.

David B. - 13/1/2021

Love these strings, they are so bright and play and feel so good

Paul d. - 11/10/2020

My go to strings. Tried the Ernie ball earthworks strings and found that I was having to change the strings nearly every two weeks. I?m a regular player who plays the guitar for an hour or two every night, so thought this wouldn?t be an issue. I then found the Martin strings and there is a world of difference. They don?t oxidise as quickly meaning that you keep that bright tone for longer and they are a similar price as the Earnie Ball strings.

Mark T. - 22/8/2020

Quality product matching with the instrument they were fitted to

James N. - 29/7/2020

Excellent service as usual

Simon S. - 19/7/2020

A quality product that sounds great, and will last.

Wayne B. - 17/6/2020

Andy N. - 22/5/2020

Adam J. - 27/9/2019

To be honest the Strings are still in their packet but I don't expect anything less than perfect when it's time to be used.

Derek C. - 21/1/2019

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