The Martin MA170 are the Authentic Acoustic SP strings in 80/20 bronze — a straightforward, uncoated acoustic guitar string set that's been a go-to for players who want a traditional feel and a bright, lively tone. These are extra-light gauge (.010–.047), which means less tension on the neck and easier fretting across the board.
At the core of these strings is a high-tensile-strength steel wire that Martin tin-plates on all six strings for added corrosion resistance. The 80/20 bronze winding — 80% copper, 20% zinc — gives these strings a crisp, clear character with strong overtones. Since they're uncoated, you get direct finger-to-string contact and the full natural resonance of the alloy. These also put less stress on the instrument compared to heavier gauges, which can be worth keeping in mind for older or lighter-built guitars.
Product Features:
- 80/20 bronze (80% copper, 20% zinc) round-wound winding
- Tin-plated high-tensile-strength steel core on all six strings
- Extra Light gauge: .010 .014 .023 .030 .039 .047
- Uncoated for traditional feel and natural resonance
- Designed for acoustic guitar
Brand: Martin
Model: MA170 Authentic Acoustic SP 80/20 Bronze Extra Light
SKU: MA170
Condition: New
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