Features It is crafted using solid Adirondack Spruce for the top Solid East Indian Rosewood for the back and sides plus Sitka Golden Era back braces. D28 Marquis Acoustic Guitar Description Product Description Since its introduction in 1931, the Martin D28 has remained the standard by which all large bodied, steel-string acoustic guitars are measured. The D28 utilizes solid East Indian rosewood for the back and sides. Genuine ebony is used for the fingerboard and bridge. With its rich resonant warmth, the D28 is particularly well suited to bluegrass, country, and other musical styles requiring loud, powerful rhythm accompaniment. Includes hard shell case. Since its introduction in 1931, the Martin D28 has remained the standard by which all large bodied, steel-string acoustic guitars are measured. The D28 utilizes solid East Indian rosewood for the back and sides. Genuine ebony is used for the fingerboard and bridge. With its rich resonant warmth, the D28 is particularly well suited to bluegrass, country, and other musical styles requiring loud, powerful rhythm accompaniment. Includes hard shell case. Typically the action is set higher on these than on a D18, 35, 42 or 45 owing to the instrument's bluegrass roots where the instrument performs with mandolins, banjos and Dobros which are loud. A heavier gauge string and tad higher action makes the guitar louder. Well-played D28's are often referred to as "cannons".