Kostal OMC, Master Grade Koa & German Spruce - Pre-Owned

$22,000 $17,995

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Jason Kostal himself says that if you're going to have one guitar, it should probably be an OM. And if it's a Kostal OM with cutaway like this one, with German spruce top and subtly figured koa, we don't think that's a hard choice to make. Jason describes his OM as having a warm bass presence and being well-balanced across the tonal spectrum, and we couldn't agree more. But with koa back and sides, there's an added presence in the treble and mids, bringing the dynamic range of this versatile model up a notch. A slightly shorter than standard scale length of 25" (as opposed to 25.5" or similar) makes fretting all that much easier, with no loss in projection. This OMC's voice would be equally satisfying playing solo or in small ensemble performances. Overall, it's an ideal choice for performers who often plug in. 

This pre-owned model is in excellent condition, and virtually indistinguishable from a our newer Kostals. Check out the videos below not just for a demo, but for the incoming video back when it was being built!

  • Model: OM with cutaway
  • Top: German spruce
  • Back and sides: Master-grade koa
  • Top braces: Sitka spruce
  • Back braces: Mahogany
  • Neck: One-piece Honduran mahogany
  • Fingerboard: Ebony with ebony binding
  • Fretwork: Medium tall
  • Rosette: Amber stained glass
  • End graft: Decorative
  • Headstock veneer: Two-tone
  • Binding: Ebony
  • Cutaway: Florentine
  • Bridge: Ebony
  • Tuners: Gotoh 510
  • Scale length: 25”
  • Nut width: 1.75”
  • Serial number: 148
  • Year of build: 2018
  • Case: Hardshell


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



Based in Phoenix, Arizona, luthier Jason Kostal set up independently following four years teaching at the prestigious Roberto-Venn School of Luthiery, and an extended three-year apprenticeship with Ervin Somogyi.

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