The evolution of the original flattop steel stringed acoustic guitar.
The OM-28 was Martin's first model offered with a 14-fret neck. Produced from 1929-1933, this guitar is widely considered as the original modern flat top steel string. Differing only in its body size from the DC-28E, the OMC-28E also offers a cutaway and new factory installed Ellipse Aura electronics. Four model specific sound images may be blended with the Martin Gold Plus under-the-saddle transducer to achieve optimum acoustic sound reproduction