Sustainably sourced Sitka spruce soundboard, expertly bookmatched to enhance structural stability and tone.
Sitka spruce slipmatched guitar top, designed for natural grain harmony and vibrant tonal projection.
Sustainably sourced Sitka spruce soundboard, expertly bookmatched to enhance structural stability and tone.
Sitka spruce slipmatched guitar top, designed for natural grain harmony and vibrant tonal projection.
NOT Actual Product

4 Piece Sonic Sitka Vault 5583

$120.00 Sale • Save

Only 1 left in stock

Size: Dreadnought
Stiffness: 13559
Density: 378
Q: 169

Special Attributes:

Nominal Dimensions:
Dreadnought Template 0.160” (4mm) x 4.25” (107.95mm) x 21.5” (546mm)
Classic Template 0.160” (4mm) x 3.875” (98.425mm) x 21.5” (546mm)

PRT is proud to bring a 4 piece top to market. These tops allow us to make soundboards from smaller diameter logs and to utilize each log more completely. Four piece tops are cut from a smaller section of a tree, representing less of any tree's life (say 60 years, instead of 120), and are therefore more consistent in all of their physical properties.


Density, Q, and Stiffness are all provided, allowing you to choose the piece that exactly fits your needs. In addition to the data provided, High Q (Q >= 160) and High Stiffness boards are exclusively available in the Vault.

Every sonically graded board is required to meet the following specifications:

  • Density in the range of 350 - 500 kg/m3
  • Stiffness within 10% of the mean
  • Damping (Q) >= 150
Miroslav Tadić testing a custom acoustic guitar with figured koa back and sides and a light-coloured spruce top.
“

Being a luthier-hobbyist myself, I recently built a Flamenco guitar using sonically graded Sitka spruce from Pacific Rim Tonewoods. The quality of their wood helped me make a clear step forward as an instrument builder, and I'm looking forward to collaborating with this amazing company for many years to come.

Miroslav Tadic, Musician & Luthier

Man in blue shirt inspecting tonewood pieces on a workbench surrounded by guitar body templates and stacked wood sheets.
“

One of my jobs at Collings Guitars for the last 33 years has been ordering and putting into production Pacific Rim Tonewoods Sitka spruce tops. The quality and consistency of their soundboards is outstanding—it doesn’t get any better.

Bruce VanWart 

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