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Martin Custom Shop 28 Style All Highly Flamed Koa Concert Acoustic Guitar Natural

Description
The Martin Custom Shop 28 Style All Highly Flamed Koa Concert acoustic guitar offers a rare build and distinctive visual appeal for players who want standout tone and craftsmanship. Featuring highly flamed koa on the top, back, sides, and headplate, this concert body design delivers a bright, focused response with strong midrange and clear articulation. Antique white binding and a gloss finish accent the natural beauty of the wood, while Style 3 Uke diamond and square fingerboard inlays add subtle, classic detail. With a 14-fret neck joint and shorter 24.9" scale, this acoustic guitar is comfortable for extended fingerstyle sessions or precise melodic work. A hardshell case keeps the instrument protected for travel and storage, making it suitable for players on the go.
Highly Flamed Koa Drives Focused, Lively Sound
The top, back, and sides use highly flamed koa, known for its striking grain and sonic brightness. Koa creates a voice with quick response and strong attack, while the concert body shape supports clarity for complex fingerwork. The wood's natural compression adds control for players working with dynamic touch. This build helps solo lines stand out and makes soft passages more articulate.
X-Brace and Spruce Bracing Strengthen Projection
X-bracing under the top combines with spruce braces to support the guitar's structure and shape its voice. This system increases sustain and balances the tone across the frequency range. The bracing design gives the koa top room to vibrate, improving volume for small venues or recording sessions. Players will notice a clear, even response when moving from soft picking to louder strumming.
Modern Neck Profile and Setup Improve Playing Comfort
The neck uses a modified low oval profile, designed to fit most hands without fatigue. The 1-3/4" nut width and 14-fret body joint give room for both chords and single-note runs. Grover nickel tuners hold pitch for longer periods, while the straight-line bridge and bone saddle keep intonation accurate. Players can make fast adjustments and stay in tune during long rehearsals or live shows.
Construction Choices Boost Durability and Longevity
Martin's dovetail neck joint provides a solid connection for stability, while the gloss finish protects the wood from humidity and wear. Ebony fingerboard resists grooves and stays smooth over time. Antique white binding adds a layer of protection to the edges, and the bone nut and saddle support consistent performance. The included hardshell case shields the guitar during transport and storage, reducing risk of damage.
Player Experience With the Highly Flamed Koa Concert acoustic guitar
This concert acoustic guitar suits those who value focused tone and custom craftsmanship. The koa build responds well to expressive playing, and the comfortable neck profile supports extended practice or performance. Unique visual details and reliable construction make this instrument a practical choice for musicians seeking standout sound and lasting durability.



Features
- Highly flamed koa top produces bright tones with excellent projection
- X-bracing delivers stability and enhances dynamic tonal range
- Ebony fingerboard ensures smooth fretting and long-lasting durability
- Modified low oval neck shape provides comfortable playability for intricate chords
- Bone nut and saddle improve sustain and tonal clarity
- Grover nickel tuners maintain precise tuning during extended sessions
- 24.9" scale length offers easy playability and balanced string tension
- Modern straight-line bridge improves string alignment and enhances tonal focus
- White pins with Paua accents add visual appeal and secure string placement
- Hardshell case protects the guitar during travel and storage
Specs
- Product type: Acoustic guitar
- Body shape: 0 concert
- Body wood: Highly flamed koa
- Top wood: Highly flamed koa
- Top bracing pattern: X brace
- Top braces: Spruce
- Back material: Highly flamed koa
- Side materials: Highly flamed koa
- Body finish: Gloss
- Top finish: Gloss
- Neck wood: Select hardwood
- Neck shape: Modified low oval
- Neck joint: Dovetail neck joint
- Scale length: 24.9"
- Neck finish: Satin
- Material: Ebony
- Inlays: Style 3 uke diamond and square
- Number of frets: 20
- Number of frets to body: 14
- Nut width: 1.75"
- Nut material: Bone
- Bridge type: Modern straight line
- Saddle: Bone
- Bridge string spacing: 2.15625"
- Tuning machines: Grover nickel
- Pickguard: None
- Bridge and end pin: White with paua
- Strings: Authentic Acoustic Lifespan 2.0
- Case: Hardshell
- Orientation: Right handed
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