Acoustic Guitar with Spruce Top, Mahogany Back and Sides, Select Hardwood Neck, and Ebony Fingerboard - Natural
Larger in both size and sound than a traditional dreadnought, the Martin Super D-18 Acoustic Guitar - Natural takes Nazareth’s iconic acoustic cannon to new heights of depth and projection. Available at Sadek Music, this oversized acoustic guitar delivers incredible volume, powerful tone, and outstanding dynamic range. The Martin Super D-18 features 20% more internal air volume than a standard D-18, with a wider body measuring 16.375 inches compared to the traditional dreadnought’s 15.625-inch width. The result is an instrument with enhanced projection, deeper bass response, and a rich, full-bodied sound — all while maintaining the timeless Martin dreadnought character.This super-sized dreadnought includes all the legendary D-18 features, including a solid Sitka spruce top, forward-shifted scalloped X-bracing, and genuine mahogany back and sides. Whether playing open cowboy chords or fast bluegrass flatpicking runs, the Super D-18 delivers the crisp clarity, balanced tone, and warm midrange that have made the D-18 one of the most respected acoustic guitars in music history. The guitar also features a select hardwood neck with Martin’s comfortable GE Modified Low Oval profile, a premium ebony fingerboard, and vintage-style open-back nickel tuning machines for smooth and reliable performance.After nearly a century of dreadnought excellence, the Martin Super D-18 represents the ultimate evolution of acoustic power, offering professional musicians and collectors a premium instrument with exceptional tone, craftsmanship, and performance — available now at Sadek Music.
One step above a dreadnought
Designed long before the era of acoustic guitar amplification, Martin’s dreadnought guitars were originally engineered to provide guitarists with enough volume to stand against the louder, more powerful instruments in musical ensembles. In fact, Martin’s models had steadily grown larger since the company was founded in 1833, though that trend came to a halt when electricity entered the equation. The Martin Super D body answers a simple question: What if Martin had kept going? As you might expect, the result is an instrument that takes all the sought-after qualities of a Martin dread — thumping acoustic projection, a vast dynamic range, and unparalleled bass response — and makes them even bigger. Whether you’re in an acoustic arms race with the banjo player in your bluegrass band or you simply can’t help but delight in the sound of a chest-rumbling open E chord, the Martin Super D’s unabashedly oversized sound towers above the rest.
Savor the sound of solid mahogany
Offering a warm and punchy voice, the Martin 18-series’ spruce-topped mahogany tone has graced countless recordings in almost every genre and era. Whether you know it or not, you’ve undoubtedly heard a Style 18 Martin before if you have even a passing familiarity with guitar-based music of the 20th century. So, what does it sound like? First off, this towering Super D-18 mirrors the refreshed 2025 D-18 with a Sitka spruce top and GE-scalloped, forward-shifted X-bracing — a much-welcomed change by Sweetwater’s vintage Martin fanatics, as it captures the ultra-responsive feel and rich low-end power that have made Martin’s prewar models among the most sought-after instruments on the planet.
Martin Standard Series: Revisiting Timeless Martin Tradition
With a legendary history of acoustic guitar craftsmanship and innovation, Martin’s iconic instruments have long been recognized as the foundation of American steel-string guitar design. Keeping this heritage in mind, Martin introduces the refreshed Standard Series — a collection created to bring back the classic appearance and tone of the brand’s golden-era vintage models while adding modern performance improvements. Available at Sadek Music, the Martin Super D-18 Acoustic Guitar - Natural represents the perfect balance between traditional Martin character and contemporary playability. This updated model combines authentic vintage-inspired tone with enhanced comfort, precision, and versatility for today’s players. The Super D-18 follows the refreshed Standard Series design with responsive GE (Golden Era) bracing, a thinner fingerboard with smooth beveled edges, a vintage-style heel, an angled nut, and a GE belly bridge. These premium features contribute to its exceptional resonance, improved feel, and powerful acoustic performance. Built for musicians who appreciate classic Martin craftsmanship with modern refinements, the Martin Super D-18 delivers the iconic tone, projection, and playing experience that have made Martin guitars legendary for generations — now available at Sadek Music.
Martin Super D-18 Features:
- The inaugural appearance of Martin’s oversized Super D body shape in the Standard series lineup
- Super D body clocks in with a width of 16.375 in. (as compared to the traditional dread’s 15.625-in. width) to deliver a more bass-heavy boom with unmatched acoustic projection
- Sitka spruce top with forward-shifted scalloped GE bracing rings produces a responsive feel and rumbling low-end potential
- Genuine mahogany back and sides offer a focused, midrange-rich punch to balance the bass of the Super D body
- Select hardwood neck in Martin’s fast-playing GE Modified Low Oval profile, finished off with a sleek satin finish
- Ebony fingerboard loaded with Old Style 18 inlays
- Nickel open-gear tuning machines for a touch of retro charm
- 1.75-in. nut width is sure to please players of all styles, whether you’re a fingerpicker, a strummer, or a flatpicker
- Retains all the upgrades of Martin’s refreshed Standard series lineup, including a thinner fingerboard with beveled edges, an angled nut, a vintage-style heel, and pre-war-inspired bracing
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