The Collings OM1 is inspired by the classic, small-bodied mahogany Martins of the early 1930s. The OM1 has a rich, balanced tone with a clear, defined bass and strong, bell-like trebles. The standard OM1 is a great sounding guitar but in the Traditional configuration it has an even rounder, richer tone. We ordered this guitar with a torrefied Sitka spruce top, which produces a tone that is comes very close to a 1930s-era vintage sound.