Martin M540 Phosphor Bronze 12-54 Acoustic Guitar Strings:
Martin's M540 acoustic guitar strings are a 12-54 light 6-string set, made with 92/8 phosphor bronze wrap for warm tone. This alloy is 92% copper, 8% tin, and traces of lead, iron, zinc and phosphor. They are less bright and a little warmer than 80/20 alloy. The phosphor in the alloy helps them retain their new sound for extended tone consistency. This light gauge set is easy on the fingers, yet yields full bodied tone. Their ease of playing gives you hours of extended play, and help you fulfill your desire to make music. Martin M540s are a great value for such a low cost, and give you satisfaction in knowing you are getting a fine quality acoustic guitar string set from Martin, a name synonymous with quality acoustic guitars and strings.