Detail 01
Forward-shifted X-bracing
The FSC-certified European spruce bracing is described as supporting projection, resonance, and tonal balance.

Independent shopping perspective
Martin’s Biosphere III is a right-handed D-14 fret acoustic guitar built with FSC-certified tonewoods and a distinctly illustrated top. Its solid Sitka spruce top, sapele back and sides, and forward-shifted X-bracing are described as delivering a full, resonant voice with clarity and projection. Robert Goetzl’s polar bear mother-and-cub artwork gives the guitar an immediate visual identity, while details including nickel open-gear tuners, aluminum side dots, and Luxe by Martin Kovar strings round out the build.


Strong match
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What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01
The FSC-certified European spruce bracing is described as supporting projection, resonance, and tonal balance.
Detail 02
This wood combination is described as providing dynamic response, clarity, warmth, depth, and a resonant sound.
Detail 03
A soft shell case is listed with the guitar.
Final check

Product questions
Straight answers to the questions shoppers most often ask about this product.
Robert Goetzl’s custom-ink design depicts a polar bear mother and cub.
It has an FSC-certified solid Sitka spruce top, FSC-certified sapele back and sides, an FSC-certified select mahogany neck, and an FSC-certified ebony fingerboard.
It is strung with Luxe by Martin Kovar strings.
Reference
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