The Martin D-28 is such an iconic guitar that any changes or upgrades should be carefully considered. Happily, Martins recent updating was well thought out and sensitively done! Leaving the many Martin fans satisfied and happy.THE HISTORYThe Martin D-28 is a dreadnought-style acoustic guitar made by C. F. Martin and Company of Nazareth, Pennsylvania. It is widely regarded amongst luthiers and guitarists alike as being the classic and even iconic American made acoustic guitar.Introduced by Martin in 1931, the D-28 is prized for its booming projection and high quality tone. The first batch went wholly to the Chicago Musical Instrument Company, although this exclusive deal didnt last for long. Originally built around the Martin D-14 Fret platform, early examples included exotic tone woods, such as Brazilian Rosewood, which is no longer available in large quantities due to deforestation and subsequent treaty controls.Original D28 guitars also used standard materials no longer found in current production models. For example, they had a distinct Herringbone pattern that lined the top of the guitar. However, this touch was discontinued in 1946, as the German-made materials were no longer available post-World War II. Also the Diamonds and Squares fretboard inlays were reduced to plain dot styling around this time.THE MODERN D28 The modern D-28 is made of several high quality tone woods, including a solid Sitka spruce or Adirondack red spruce top, Indian rosewood back and sides, and mahogany neck. It uses the classic non scalloped X bracing pattern pioneered by Martin, along with an ebony bridge and fret board. Much of the construction is still done by hand although in recent years Martin has adopted computer controlled CNC machines to fashion the guitars neck, and employs automated buffing and polishing machines, while maintaining the overall quality of the finished product.The visible changes are low-key and elements like the tortoiseshell colored pickguard, aging top toner, open-back gears and slightly darker binding give the guitar a more vintage look. The nut has also been slightly widened to 1 3/4 inch, which gives the players fretting hand a little more room to maneuver.The biggest change, however, is under the hood. Martin is now making the D-28 with forward shifted, non-scalloped bracing. This configuration moves the stiffest part of the top closer to the soundhole and away from the bridge, which allows the strings to activate the top a little more efficiently. This change give a boost to the bass while still retaining a strong treble and midrange response.