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Martin SP + Extended Life Bronze & Phosphor Bronze Acoustic Strings
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Martin SP+ Extended Life Strings are specially coated offering a clear, rich, and long-lasting sound as well as numerous benefits, including
protection from moisture, salts, perspiration and other contaminants. In addition, the new SP+ coating helps insulate the wrap wire to prevent
corrosion between the core and the wrap wires. Martin uses computerized equipment in a climate controlled environment to verify the high tensile
strength of all incoming wire prior to manufacture. The brass wrap is then carefully spun onto the core wire for the four wound strings of
each set. SP+ strings use the same special brass plated core wire that is incorporated in the innovative SP string, but the brass wrap on the
four wound strings is specially coated. With the coating, the surface of the string feels smoother and faster for the player. SP+ strings are
available in either 80/20 Bronze or 92/8 Phosphor Bronze in either light or medium gauge.
To order online use the shopping cart, or call 1.800.753.6694.
Gauge Chart
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Gauge
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1
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2
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3
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4
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5
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6
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Tension
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Light
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.012
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.016
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.025
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.032
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.042
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.054
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160.5
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Medium
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.013
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.017
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.026
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.035
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.045
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.056
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181.1
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We accept  payments!!! Simply select PayPal at the payment section of the shopping cart checkout.
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