The Martin OMJM John Mayer Acoustic-Electric Guitar: More Than Two Decades in the Making

Few artist partnerships in the history of acoustic guitar have been as enduring, as musically relevant, or as personally meaningful as the collaboration between Martin Guitar and John Mayer. Since Mayer first became a Martin signature artist, he has gone from a gifted young singer-songwriter to one of the most important and versatile guitarists of his generation — a player whose style encompasses blues, pop, rock, and soul, and whose guitar tone is instantly recognizable. The Martin OMJM John Mayer is the ongoing expression of that partnership, a guitar rooted in the DNA of Mayer's original limited-edition OM-28JM but refined over years of collaboration into a broadly available instrument that captures everything that made that first guitar so special. It is, simply put, one of the finest signature acoustic guitars available at any level.

A Voice Built for Expression

The tonal foundation of the OMJM begins with an Engelmann spruce top finished with a warm antique toner — a top wood prized for its exceptional responsiveness, broad dynamic range, and ability to produce a complex, nuanced voice that rewards both gentle fingerpicking and driven strumming with equal authority. Engelmann spruce is softer and more responsive than Sitka, giving the OMJM a slightly warmer, more immediate quality that suits Mayer's expressive playing style perfectly. East Indian rosewood back and sides add depth, warmth, and sustain, rounding out a tonal profile that is as comfortable in a jazz ballad as it is in a blues groove or an acoustic pop setting. Scalloped X-bracing with 5/16" spruce braces and 1/4" tone bars ensures the top moves freely and projects with confidence, and the 25.4" scale length adds tension, clarity, and note-to-note definition throughout the range.

Playability and Appointments That Set It Apart

The OMJM features a select hardwood neck in a Low Profile shape with Standard Taper — the same comfortable, fast-playing profile that Mayer has long favored and that makes this guitar a joy to play for extended periods. The 1-11/16" nut width provides ideal string spacing for the kind of precise single-note lead work and chord-melody playing that defines Mayer's acoustic style. The ebony fingerboard carries custom mother-of-pearl inlays including John's signature, a detail that makes this guitar feel genuinely personal rather than simply branded. Bold herringbone top trim, an abalone rosette with multi-stripe detailing, antique white binding, a tortoise pattern pickguard, and nickel open gear tuners with butterbean knobs complete an appointment package that is both elegant and unmistakably classic.

Ready for Every Stage

The OMJM is Plek'd at the factory for optimized playability right out of the case, and it comes equipped with optional Fishman Gold Plus Natural I electronics that make it fully stage-ready without compromising its acoustic integrity. A bone nut and compensated white Tusq saddle ensure excellent intonation and tone transfer, and Martin's Authentic Acoustic Lifespan 2.0 Phosphor Bronze Light strings come pre-strung to bring the full character of the instrument to life from the first note.

Why We Love This

Our Gear Experts are drawn to the OMJM John Mayer because it delivers the full expressive range of a premium Orchestra Model in a package that feels genuinely personal and purpose-built. The Engelmann spruce top responds with remarkable sensitivity to dynamics and touch, making it equally rewarding for fingerstyle players and aggressive strummers. The Low Profile neck and 1-11/16" nut width make complex voicings and fast single-note runs feel effortless, and the Fishman electronics ensure it performs as well plugged in as it does acoustically. For players who want a world-class acoustic that can do everything, the OMJM delivers without compromise.

Features:

• Engelmann spruce top with antique toner for a warm, responsive, dynamically expressive voice
• East Indian rosewood back and sides for rich depth, warmth, and full-bodied sustain
• Scalloped X-bracing with 5/16" spruce braces and 1/4" tone bars for free, projecting response
• Low Profile select hardwood neck with Standard Taper for smooth, fast playability
• 1-11/16" ebony fingerboard with custom mother-of-pearl inlays including John Mayer's signature
• 25.4" scale length for added projection, tension, and note-to-note clarity
• Fishman Gold Plus Natural I electronics for stage-ready amplified acoustic performance
• Bold herringbone top trim, abalone rosette, and antique white binding for refined vintage elegance
• Bone nut and compensated white Tusq saddle for optimized intonation and tone transfer
• Plek'd at the factory for exceptional out-of-the-box playability and setup

Things You Will Get:

• Martin OMJM John Mayer Acoustic-Electric Guitar
• Ply Hardshell Case with Embroidery
• Martin Authentic Acoustic Lifespan 2.0 Phosphor Bronze Light Strings (pre-strung on instrument)
• Label with pre-printed signatures of CFM IV and John Mayer, numbered in sequence