Martin MSP4000 SP Phosphor Bronze Extra Light Acoustic Guitar Strings are made with a unique composition to give brilliance, clarity, and longevity of sound. The phosphor bronze winding alloy is ideally suited for making str...

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Product Review

Martin MSP4000 SP Phosphor Bronze Extra Light Acoustic Guitar Strings are made with a unique composition to give brilliance, clarity, and longevity of sound. The phosphor bronze winding alloy is ideally suited for making strings that have deep, rich basses and clear, bright trebles.

  • Gauges: .010 - .047
  • Bronze alloy for brilliance and long life

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