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Letter: Settling-In of Guitars

Letter: Settling-In of Guitars

by Chris von der Borch

Originally published in American Lutherie #40, 1994



Dear Guild,

I have been constructing classic, baroque, and steel string guitars since around 1960. It is a long-term hobby of mine, as is guitar playing (in real life I am a professor of marine geology). I have made about sixteen instruments, with latter classicals being based precisely on measurements of several well-known Fleta guitars, including top thickness gradations and strut dimensions. I have used a variety of highest-quality soundboard wood (cedar, Sitka spruce, European spruce) and Brazilian rosewood. Recently I completed my first Smallman-style guitar using a wafer thin cedar soundboard (1MM) combined with web strutting of balsa and carbon fibre and a series of rather heavy internal braces to reinforce soundboard support.

Of all the above, only two are really satisfactory. One is a Sitka spruce Fleta-style guitar which matured after several years into a top instrument. The other success is the Smallman-style guitar, despite a slight fall off in “zippiness” from initial tune-up. Other guitars typically sounded brilliant, usually 24 hours after initial tune-up. This brilliance typically persisted for a couple of weeks, after which the tonal quality and sustain deadened somewhat and never returned. These guitars, on maturation, have become pleasant, run-of-the-mill instruments, but not world shakers! These observations imply, I feel, that the essential ingredients for superior tone were initially present, but a mechanical and not an acoustical problem has occurred. In short, stresses have set in, or the soundboards have lost some of their initial tension. I should add that up to now, all of my guitars have been constructed under careful humidity control and in such a way as to minimize any inbuilt stresses.

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