Get maximum dreadnought-style power with the Martin Super D-18 Acoustic Guitar, available at Irvine Art and Music. Built with a larger “Super D” body that has about 20% more internal air volume than a standard dreadnought, it delivers deeper bass, more volume, and a wider dynamic range—perfect for flatpickers, bluegrass players, and big strummers who want their acoustic to lead the room.

The Super D-18 keeps the classic Style 18 recipe of a spruce top and genuine mahogany back and sides for clear projection and punchy midrange warmth, then adds forward-shifted Golden Era scalloped X-bracing for extra responsiveness and headroom. Finished with timeless appointments and shipped in a molded hardshell case, it’s a bold, modern take on an acoustic icon built to be heard.

Product Features

• Super D body with ~20% more internal air volume than a standard dreadnought
• Big, room-filling projection with deeper low end and wider dynamic range
• Spruce top with forward-shifted Golden Era scalloped X-bracing for added responsiveness
• Genuine mahogany back and sides for classic D-18 warmth and punch
• Traditional Style 18 appointments and comfortable, fast-playing neck feel
• Includes a molded hardshell case

Tech Specs

• String Type: Steel
• Number of Strings: 6
• Left-/Right-handed: Right-handed
• Body Shape: D-18
• Back & Sides Wood: Genuine Mahogany
• Top Wood: Spruce
• Top Finish: Gloss
• Color: Natural
• Body Bracing: Forward Shifted X-bracing
• Neck Wood: Select Hardwood
• Neck Shape: GE Modified Low Oval
• Radius: 16"
• Fingerboard Material: Ebony
• Fingerboard Inlay: Dots
• Number of Frets: 20
• Scale Length: 25.4"
• Scale Length Type: Standard-scale
• Nut Width: 1.75"
• Nut Material: Bone
• Saddle Material: Ebony
• Bridge Material: Ebony
• Tuning Machines: Nickel Open Gear
• Strings: Martin MA550T, .013-.056
• Case/Gig Bag: Hardshell Case
• Manufacturer Part Number: 10Y25SUPERD18