Martin Super D-18 Acoustic Guitar - Natural | No Limit Guitar Co, Idaho Falls

The Martin Super D-18 acoustic guitar takes the legendary D-18 dreadnought formula and scales it up for players who demand more volume, more bass, and more presence. With 20% more internal air volume than a standard dreadnought, this oversized acoustic guitar delivers chest-rattling bass boom, superior projection, and enhanced dynamic range—all while retaining the timeless Martin tone that's defined acoustic music for nearly a century. It's an instrument built for intermediate to professional players who want to fill any room without a pickup in sight.

Product Overview

The Super D body shape measures 16.375 inches wide—compared to the traditional dreadnought's 15.625 inches—giving this Martin acoustic guitar a noticeably deeper, more powerful sonic footprint. A solid Sitka spruce top with forward-shifted scalloped GE X-bracing provides a responsive, lively feel and the rumbling low-end potential the Super D body was designed to unleash. Genuine mahogany back and sides bring focused midrange warmth and crisp clarity to balance the enhanced bass, delivering the same tonal signature that has made the D-18 one of the most treasured acoustic guitars in history.

The select hardwood neck is shaped in Martin's GE Modified Low Oval profile with a sleek satin finish, offering a fast, comfortable feel well-suited to all playing styles. At 1.75" at the nut with a 16" fingerboard radius, the Super D-18 accommodates fingerpickers, strummers, and flatpickers equally well. A premium ebony fingerboard with Old Style 18 dot inlays adds a refined, classic touch while delivering the smooth, durable playing surface ebony is known for.

This Martin dreadnought acoustic guitar carries all the upgrades from Martin's refreshed Standard series, including a thinner fingerboard with beveled edges, an angled nut, a vintage-style heel, and prewar-inspired bracing. Nickel open-gear tuning machines round out the retro aesthetic, providing reliable tuning stability with old-school charm. No electronics keep this guitar purely focused on acoustic performance—making it one of the most powerful unplugged instruments available at a guitar shop in Idaho Falls.

Ideal For

• Flatpickers and bluegrass players seeking maximum acoustic projection and bass-heavy punch from a premium Martin dreadnought acoustic guitar
• Intermediate to professional performers who want the classic D-18 tonal character in a larger, louder body
• Singer-songwriters and live performers needing a guitar that fills a room without amplification
• Martin enthusiasts looking for the inaugural Super D body shape in the Standard series lineup
• Idaho Falls guitarists searching for a best-in-class oversized acoustic guitar from a trusted local guitar shop

Key Features

Super D Oversized Body The Super D body shape clocks in at 16.375 inches wide, delivering 20% more internal air volume than a standard dreadnought. The result is exceptional bass depth, superior volume potential, and dynamic range that smaller-bodied guitars simply can't match.

Sitka Spruce Top with Forward-Shifted Scalloped GE Bracing Sitka spruce is the workhorse top wood of modern dreadnoughts, prized for its wide dynamic range and clear, balanced tone. Forward-shifted scalloped GE X-bracing maximizes the top's responsiveness and low-end resonance, perfectly complementing the Super D's oversized air volume.

Genuine Mahogany Back & Sides Genuine mahogany provides the focused midrange punch and low-end warmth that defines the Style 18 sound, balancing the Super D body's enhanced bass response for a full, well-rounded acoustic tone.

Ebony Fingerboard & Bridge Ebony is one of the hardest, most stable tonewoods available, contributing crisp attack, excellent sustain, and long-term durability. The ebony bridge paired with an ebony saddle maximizes string-to-top energy transfer for precise intonation and note clarity.

Martin Refreshed Standard Series Upgrades This guitar includes all of Martin's 2025 Standard series refinements—thinner fingerboard with beveled edges, angled nut, vintage-style heel, and prewar-inspired bracing—delivering a playing experience that bridges traditional craftsmanship with modern comfort.

What's Included

• Martin Super D-18 Acoustic Guitar
• Martin hardshell case
• Martin MA550T strings (.013–.056) installed
• Manufacturer's warranty

Technical Specifications

Get Your Hands on This Acoustic Guitar Today

Come visit No Limit Guitar Co in Idaho Falls to play the Martin Super D-18 in person and hear what oversized dreadnought power sounds like firsthand. Our knowledgeable team is ready to help you find the right guitar for your playing style and goals. Stop by the shop, give us a call, or reach out through our website to check availability.