The Martin MA540 Authentic Acoustic SP strings are Martin's standard-bearer for acoustic guitar strings — a light-gauge set built on 92/8 phosphor bronze wrap wire and a high-tensile, tin-plated steel core. If you play acoustic and haven't tried phosphor bronze, this is a great place to start. If you already use them, you already know why they keep ending up back on your guitar.
Martin wraps 92/8 phosphor bronze over their highest-tensile-strength core wire, then tin-plates that core on all six strings for an added layer of corrosion resistance. The result is a set that holds its tone and tuning through long sessions. The light gauge (.012–.054) sits in a sweet spot — enough tension for good projection and volume, light enough to stay comfortable across a wide range of playing styles.
These strings work for strumming, flatpicking, and fingerpicking alike. The phosphor bronze wrap mellows naturally with age and use while the corrosion-resistant construction keeps that from happening too fast. Whether you're practicing at home, playing a gig, or just keeping a spare set in the case, the MA540 is a consistent, reliable choice for any steel-string acoustic.
Product Features:
- 92/8 phosphor bronze wrap wire for warm, rich tone
- Tin-plated, high-tensile-strength steel core on all six strings
- Light gauge: .012, .016, .025, .032, .042, .054
- Corrosion-resistant construction for extended string life
- Excellent tuning stability and playability
- Designed for 6-string acoustic guitar
Brand: Martin
Model: MA540 Authentic Acoustic SP
SKU: 41Y18MA540
Condition: New
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