Martin MA150T Authentic Acoustic Lifespan 2.0 Treated 80/20 Bronze Guitar Strings - Medium 13-56 bulkhead 13" Diameter

13" Diameter

Up/Down/Cross Conversion

5mm polyethylene grill protector to prevent dents and dings

a built-in FX loop lets you expand your sound even further

Computer Interface: PCI Express 4 lane generation 2

Martin MA150T Authentic Acoustic Lifespan 2.0 Treated 80/20 Bronze Guitar Strings - Medium 13-56 bulkhead 13" DiameterNext generation Martin Authentic Acoustic Lifespan 2. 0 strings are engineered using a new, patented anti corrosion treatment only available from Martin. It protects the core and wrap wire to prevent corrosion without compromising tone or feel. Our impeccable standards for acoustic guitar tone are embedded in our string design and precision manufacturing process. Thats why we make our own.