Detail 01
12.5-16.5-25.5-33.5-43.5-55 gauge
These are Martin’s listed Light/Medium gauges for the MA545 set.
Product detailSKU #1500000223118
MartinMA545 SP Phosphor Bronze Light/Medium Authentic Acoustic Guitar Strings
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Independent shopping perspective
The Korena take
MA545 is Martin’s Light/Medium Authentic Acoustic phosphor bronze set, defined by its 12.5-55 gauge progression. It uses high-tensile core wire with tin plating on all six strings, alongside quality wrap wire. Martin builds the set around corrosion resistance and consistent tone through demanding practice and performance use. The main decision here is gauge: it is the Light/Medium configuration, so choose it when that exact progression is the replacement you need.
Strong match
Who this is for
- Replacing strings with Martin’s specific 12.5-55 Light/Medium phosphor bronze gauge progression.
- Practice and performance schedules where the set’s corrosion-resistant construction is relevant.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Tin-plated core wires
Each of the six cores is plated for added corrosion resistance.
Final check
Know before you order
- 01Verify that you need the 12.5-16.5-25.5-33.5-43.5-55 Light/Medium gauge set.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What gauges are in the MA545 set?
The gauges are 12.5-16.5-25.5-33.5-43.5-55.
02Does MA545 use plated cores?
Yes. Martin tin-plates the core wire on all six strings for added corrosion resistance.
