Since 1931, the Martin D-28 has been the standard by which all acoustic guitars are measured. The full-gloss DC-28E is highlighted with a cutaway and new factory-installed Ellipse Aura electronics. Optimum acoustic sound reproduction is achieved by the ability to blend your choice of four acoustic sound images with the Martin Gold Plus under-the-saddle transducer. All of this ability is conveniently packaged in the non-invasive unit inside the lip of the soundhole.