The Martin D15M acoustic guitar is the most affordable solid wood guitar of the D15 series plus it is the most visually distinctive and innovative. Martin has the long recognized the excellent tonal qualities of mahogany – bright, clear trebles and a warm mid-range. Additional features include herringbone rosette, rich satin finish, patented neck mortise and A-frame X bracing for enhanced tone. About Martin Guitars For well over a century and a half, the Martin Guitar Company has been continuously producing acoustic instruments that are acknowledged to be the finest in the world. The Martin Guitar Company has, through the years, managed to survive with each succeeding generation from C. F. Martin, Sr.'s Stauffer influenced creations of the 1830s to recent developments introduced by C. F. Martin IV. Continuous operation under family management is a feat bordering on the remarkable, reflecting six generations of dedication to the guitarmaker's craft. In or out of the music industry, C. F. Martin has few rivals for sheer staying power. Throughout its colorful history, the company has adapted successfully to continual changes in product design, distribution systems, and manufacturing methods. In spite of the many changes, C. F. Martin has never veered away from its initial commitment to quality. The concern for producing the finest instruments possible in 1833 is especially in evidence today at Martin's expanded facility in Nazareth, Pennsylvania.