Martin MA550 Authentic SP 92/8 Phosphor Bronze Acoustic Guitar Strings Medium 13-56 Electric 9.5-44 while Custom mode introduces a

while Custom mode introduces a fresh

Don't miss the experience of music that's driven by your instinct

61 standard size keys

Available in sizes 6" - 36"

Martin MA550 Authentic SP 92/8 Phosphor Bronze Acoustic Guitar Strings Medium 13-56 Electric 9.5-44 while Custom mode introduces aMartin Authentic Acoustic strings are engineered with the performer in mind and they will always stand up to rigourous practice and performance schedules. We start with our highest tensile strength core wire, then tin plate it on all six strings for added corrosion resistance; because what you dont see matters! When coupled with our highest quality wrap wire you get consistent true tone that you can count on song after song. Available in 80 20 Bronze