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SP Phosphor Bronze

Martin SP Phosphor Bronze Acoustic Guitar Strings

SP Phosphor Bronze Martin Acoustic Guitar Strings are preferred by many acoustic guitar string players for their brilliance and long life due to the 92/8 ratio Copper/Tin composition.

These Martin Studio Performance Acoustic Guitar Strings SP Phosphor Bronze sets are available in many gauges, from Extra Light Gauge (10-47) to Medium Gauge (13-56), as well as 12-String Acoustic Guitar Strings. - content written by Strings By Mail