Martin Authentic Acoustic SP MA540 Phosphor Bronze Light

From: $6.99 every 2 months

Martin® Authentic Acoustic® Superior Performance SP® strings feature higher tensile strength and tin-plated core wire on all six strings that enable a fuller and more balanced tone, quicker response and increased tuning stability.

MULTI-PACK PRICES. The multi-pack prices below will be applied based on the total number of ALL string packs in your subscription! Prices in Cart will adjust as packs are added.
  1-2 3-4 5-9 10+
Every Other Month $6.99 $6.71 $6.50 $6.29
Every Month $6.99 $6.71 $6.50 $6.29


Martin’s impeccable standards for acoustic guitar tone are embedded in their string design and precision manufacturing process.

  • Set: MA540
  • Phosphor Bronze
  • Gauge: Light 12-16-25-32-42-54
  • Excellent tune stability
  • Engineered to resist corrosion
  • Great playability

Additional information

Weight 1.4 oz


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