Martin MA180T Authentic Acoustic Lifespan 2.0 Treated 80/20 Bronze Guitar Strings - Extra Light 12-String white It employs a ¼”

It employs a ¼”

Black/Red 2"

B1 FOUR offers over 60 built-in effects

compatible with 8 and 16 lane PCI Express slots with HDMI or SDI mezzanine card

The AZ body has a deep waist and different radii on each body edge curve

Martin MA180T Authentic Acoustic Lifespan 2.0 Treated 80/20 Bronze Guitar Strings - Extra Light 12-String white It employs a ¼”Next 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.