John--
I followed your build log on your website. When you thicknessed the top, you showed the density ρ and Young's modulus E for the Sitka panel. From that I calculated a sound radiation coefficient R = SQRT(E/ρ³) = 13.9 So that's an exceptional piece of Sitka, considering the average for the species is 11.0.
I'm curious where you bought it?
Did you measure the deflection and frequency of the finished top to calculate the monopole mobility? I think with the piece of Sitka you used and the bracing, this guitar has the potential to push the limits of what's possible on a steel-string flat-top guitar. Above 14, for sure.
Greg
00 Sitka / Hawaiian Koa falcate steel string.
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Greg Holmberg
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John Parchem
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Re: 00 Sitka / Hawaiian Koa falcate steel string.
Pacific Rim Tonewoods worked with Trevor and is offering Sonic graded tops. They measure density, Elong and Q. They are pretty local to me, but in this case they had a stack of sets at the Guild of American Luthiers and I selected a few sets that were very stiff for their density. I plan to do check the monopole mobility before I ship it off in a couple of weeks.