Wilborn Arum, Brazilian Rosewood & Sitka Spruce


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Ben Wilborn's Comma Series guitars are a thoroughly modern and innovative approach to guitar design. Familiar sizes are given compelling names. This Arum model is comparable to a 14-fret 00-size guitar, but with this host of features, it's got a voice all its own. With an offset soundhole on the upper bout, the player gets the benefits of having a soundport, while the unique placement allows for a longer expanse of top wood to vibrate. Underneath, a radially braced top accommodates the multiscale design, as well as allowing the top to vibrate more freely. Fingerstylists will appreciate the elevated fingerboard, which not only creates more complex overtones due to the change in angle at which the strings meet the bridge, but also give the right hand fingers more clearance above the soundboard. The ever so slight multiscale design gives the player the benefits of "the deepy brassy growl of a long-scale bottom end, and couples it with the sweet fatness of a short-scale treble." Last but not least, a dramatic Florentine cutaway and arm bevel make the player's experience even better. 

And that's all to say nothing of the tonewoods or sound of this guitar. Warm, balanced, and responsive Sitka spruce forms the top, an ideal choice for fingerstyle or other players with a lighter touch. A dramatically sap-lined set of Brazilian rosewood forms the back and sides, providing dark bass, clear trebles, and unbelievable sustain.

  • Size: 14-fret 00
  • Top: Sitka spruce
  • Back and sides: Brazilian rosewood
  • Neck: Mahogany
  • Neck profile: C
  • Fretboard: Ebony
  • Binding: Ebony
  • Bridge and pins: Ebony
  • Peghead overlay: Brazilian rosewood
  • Beveled armrest: Ebony
  • Cutaway: Florentine
  • Scale length: Multiscale 25.4-24.9"
  • Nut width: 1-13/16"
  • String spacing at saddle: 2-5/16"
  • Lower bout: 14"
  • Depth: 4-1/4"
  • Serial number:
  • Year of build: 2021
  • Case: Custom blue Calton


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Every guitar comes with a 72-hour appraisal period so if you're not satisfied you can return the instrument to us

Why buy this guitar

Key Features

Wilborn Arum, Brazilian Rosewood & Sitka Spruce
The Arum model is comparable in size to a 00, with a 14" lower bout and 4-1/4" depth
The slight multi-scale design, offset soundhole, elevated fingerboard, and radially braced top make sure these premium tonewoods are optimally used
The winning combination of Sitka spruce and Brazilian rosewood is warm and responsive, with a rich bass, singing treble and clear sustain

This product listing was written by Lindsay. If you’d like to talk to Lindsay about this guitar, you can do so here:


Wilborn Guitars

Ben Wilborn specializes in steel string acoustic guitars. Wilborn guitars are lightly built, simply appointed guitars with an emphasis on extremely refined details and a powerful, balanced sound.

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All our guitars come with an appraisal period meaning easy returns if you’re not satisfied