The Martin Super D-18 acoustic guitar pushes the boundaries of a classic dreadnought, delivering a bigger, bolder voice while staying true to its heritage. Designed for players who crave commanding presence and rich tonal depth, it offers a powerful, room-filling sound with exceptional clarity and responsiveness. Its expanded design enhances projection and dynamic range, making it equally suited for heavy strumming, articulate picking, and everything in between. With its timeless aesthetic and elevated performance, the Super D-18 stands as a modern evolution of a legendary acoustic standard.

Features 

• Super D-14 Fret body size
  
• Genuine Mahogany back and sides
  
• Spruce top with Aging Toner top color
  
• GE Modified Low Oval with High-Performance Taper neck
  
• 1 3/4'' fingerboard width at nut
  
• Hardshell case

Specifications 

General
Top Material: Spruce
Finish Top: Gloss
Top Color: Aging Toner
Top Inlay Material: Multi-Stripe
Top Detail: None

Body
Body Size: Super D-14 Fret
Construction: Dovetail Neck Joint
Back Material: Genuine Mahogany
Side Material: Genuine Mahogany
Back and Side Finish: Gloss
Back and Sides Color: Dark Mahogany
Back Detail: None
Side Detail: None
Back Purfling/Strip: Style 18
Back Inlay Material: None
Side Inlay Material: None
Binding: Black
Bracing Pattern: Forward Shifted X Brace
Brace Shape: GE-Scalloped
Brace Material: Spruce
Brace Size: 5/16"
Heelcap: Black
Endpiece: Black
Endpiece Inlay: None

Neck
Neck Shape: GE Modified Low Oval
Neck Taper: High-Performance Taper
Neck Material: Select Hardwood
Neck Color: Dark Mahogany
Finish Neck: Satin
Scale Length: 25.4"
Number of Frets Total: 20
Neck Joins Body At: 14th Fret
Fingerboard Material: Ebony
Fingerboard Width at 12th Fret: 2 1/8"
Fingerboard Width at Nut: 1 3/4"
Fingerboard Inlay Style: Old Style 18
Fingerboard Inlay Material: Abalone
Fingerboard Binding Material: None
Side Dots: White

Hardware
Bridge Material: Ebony
Bridge Style: GE Modern Belly - Drop in Saddle
Bridge String Spacing: 2 5/32"
Bridge Pin Material: Ebony
Bridge Pin Dots: None
Saddle: Bone
Saddle Radius: 16"
Nut Material: Bone
Tuning Machines: Nickel Open Gear
Knob: Butterbean
Pickguard: Faux Tortoise
Pickguard Inlay: None
Rosette: Old Style 18 Multi-Stripe
Headstock Shape: Solid with Square Taper
Headplate Material: East Indian Rosewood
Headplate Logo Style: Script Old Style Overlay
Headplate Binding Material: None