Martin OM45JM20thAnniv John Mayer OM-45 Anniversary Acoustic Electric Guitar - Platinum Gray Burst

It was 2003 when John Mayer’s first signature Martin acoustic guitar made waves. Now, two decades later, Martin and the Grammy-winning artist have joined forces once again to unveil the OM-45 John Mayer Platinum Anniversary Acoustic Guitar — a truly elite tribute to Mayer's acoustic legacy, available now at Sadek Music. This masterpiece features a shimmering Engelmann spruce top, rich Guatemalan rosewood back and sides, and a sleek ebony fingerboard, all expertly crafted to deliver exceptional tone and aesthetic beauty. Inside, scalloped X-bracing offers resonant projection and warm, dynamic sustain. The mahogany neck, designed to John Mayer’s personal specs, ensures supreme playability for everything from intricate fingerpicking to rhythmic percussive grooves. Whether you're a collector, a fan, or a seasoned player, the OM-45 John Mayer Platinum is a rare opportunity to own a piece of acoustic artistry. Get yours now — exclusively at Sadek Music, where passion meets performance.

Top-shelf tonewoods impart a wonderland of sound

Step up to boldly impeccable Martin craftsmanship with the OM-45 John Mayer Platinum Anniversary Guitar, available now at Sadek Music. While every Martin acoustic has that unmistakable Martin magic, this model elevates the tradition to breathtaking new heights. Martin spared no expense in selecting world-class tonewoods: a premium Engelmann spruce top delivers responsive, articulate tones, while the Guatemalan rosewood body adds bold projection and rich complexity. Together, these tonewoods resonate with striking clarity and warmth, further enhanced by Martin’s 1/4-inch scalloped X-bracing, designed for optimal volume and sustain. Strum a single chord and experience deep resonance, long sustain, and crystal-clear note separation — all hallmarks of a truly exceptional acoustic instrument. Experience the pinnacle of tone and craftsmanship with the OM-45 John Mayer Platinum — exclusively at Sadek Music.

An acoustic only Martin could build 

Martin sculpted the mahogany neck to John Mayer’s specifications, with a thinner 1-11/16-inch width at the nut to facilitate smooth action, comfort, and speed. The Loe Profile neck shape was then capped with a silky smooth ebony fingerboard for player comfort and a stunning look. It features a 25.4-inch scale length with 20 frets ready to do your acoustic bidding. Joined to the body with a dovetail neck joint, the mahogany neck contributes enhanced sustain to the overall tone. Other appointments like an ebony bridge, compensated bone saddles, and satin nickel Waverly tuners contribute to exceptional intonation and an enduring style.

A guitar with new light and old soul

John Mayer’s original OM-28J guitar had an aluminum border around the headplate and bridge. Building on that idea, Martin and John decided to give the OM-45 John Mayer acoustic a fine silver border that expands to encompass the fingerboard and ebony pickguard as well. To top it all off, this guitar was bestowed with a unique label that includes a signature from John himself. Don’t miss your chance — grab the Martin OM-45 John Mayer Platinum-anniversary acoustic from Sadek Music today.

Martin OM-45 John Mayer Platinum-anniversary Acoustic Guitar Features:

• A top-quality John Mayer signature acoustic guitar commemorating 20 years since his first OM-28JM model release
• Engelmann spruce top contributes clear and responsive tone
• Luxurious Guatemalan rosewood back and sides pack unending resonant richness
• Scalloped X-bracing provides extra projection and sustain
• Mahogany neck offers a Low Profile neck with thinner 1-11/16-inch width at the nut
• Silky smooth ebony fingerboard stands at a 25.4-inch scale length and brandishes 20 frets
• Ebony bridge, compensated bone saddle, and ebony pickguard
• Stunning satin nickel Waverly tuners
• Finished off with a fine silver border around headplate, bridge, fingerboard, and pickguard
• Includes unique label with Mayer’s signature

Tech Specs

• String Type:Steel
• Number of Strings:6
• Left-/Right-handed:Right-handed
• Body Shape:OM-45 John Mayer Platinum Anniversary
• Back & Sides Wood:Guatemalan Rosewood
• Top Wood:Engelmann Spruce
• Top Finish:Gloss
• Color:Platinum Gray Burst
• Body Bracing:X-bracing
• Neck Wood:Mahogany
• Neck Shape:Low Profile
• Radius:16"
• Fingerboard Material:Ebony
• Fingerboard Inlay:Abalone with Mother-of-pearl
• Number of Frets:20
• Scale Length:25.4"
• Nut Width:1.6875"
• Nut/Saddle Material:Bone/Bone
• Bridge Material:Ebony
• Tuning Machines:Nickel Open Gear
• Strings:Lifespan 2.0 92/8 Phosphor Bronze, .012-.054
• Case/Gig Bag:Hardshell Case