Acoustic-electric resonator guitar from Martin & Co belonging to the Standard series
Martin & Co. released its new Standard Series Grand J12-40E Special acoustic guitar.
![[NAMM] Martin & Co Grand J12-40E Special](https://img.audiofanzine.com/img/product/normal/2/0/20439.jpg?fm=pjpg&w=334&h=243&fit=contain&s=84c818d58d59179d1a87d6f73512759b)