Martin D-18 Jason Isbell Spec Sheet

With aged Adirondack Over Mighty Mahogany, the D-18 Jason Isbell is more stallion than workhorse

As unpretentious and as powerful as the songs of its namesake.





“Simply put, this guitar sounds huge. Explosive chords burst into the room with near-concussive waves of power and punch, and relaxed, expressive picking lights up an expansive tonal chamber, as if by ballroom chandeliers.”

Full Review with Video

Specs

Model:  D-18 Jason Isbell

Construction:  Dovetail Neck Joint

Body Size:  D-14 Fret

Top Material:  Adirondack Spruce

Top Detail:  None

Rosette:  Multi-Stripe

Bracing Pattern:  Rearward Shifted X Brace

Brace Shape:  Scalloped

Brace Material:  Adirondack Spruce

Brace Size:  5/16″

Back Material:  Genuine Mahogany

Back Detail:  None

Back Purfling/Strip:  Style 18

Side Material:  Genuine Mahogany

Side Detail:  None

Endpiece:  Faux Tortoise

Endpiece Inlay:  None

Binding:  Black

Top Inlay Material:  Multi-Stripe

Side Inlay Material:  None

Back Inlay Material:  None

Neck Material:  Genuine Mahogany

Neck Shape:  Authentic 1939

Neck Taper:  Standard Taper

Plek:  Yes

Nut Material:  Bone

Headstock Shape:  Solid with Square Taper

Headplate Material:  Madagascar Rosewood

Headplate Detail:  N/A

Headplate Logo Style:  Script Old Style Overlay

Headplate Binding Material:  None

Heelcap:  Ebony

Fingerboard Material:  Ebony

Scale Length:  25.4″

Neck Joins Body At:  14th Fret

Number of Frets Total:  20

Fingerboard Width at Nut:  1 11/16”

Fingerboard Width at 12th Fret:  2 1/8”

Fingerboard Inlay Material:  Mother of Pearl

Fingerboard Inlay Style:  Custom

Fingerboard Binding Material:  None

Side Dots:  Mother of Pearl

Back and Side Finish:  Gloss

Back and Sides Color:  Dark Mahogany

Finish Top:  Gloss

Top Color:  Clear

Finish Neck:  Satin

Neck Color:  Dark Mahogany

Bridge Material:  Ebony

Bridge Style:  Modern Pyramid – Drop in Saddle

Bridge String Spacing:  2 1/8”

Saddle:  Compensated Bone

Saddle Radius:  16″

Tuning Machines:  Satin Pearl Open Gear

Recommended Strings:  SP Acoustic 92/8 Phosphor Bronze Medium (MSP4200)

Knob:  Butterbean

Bridge Pin Material:  Black Plastic

Bridge Pin Dots:  None

Pickguard:  None

Pickguard Inlay:  None

Case:  Ply Hardshell

Label:  Paper Label Signed by Jason Isbell

Electronics:  Fishman Infinity Matrix

Left Handed Availability:  Yes

Full Review with Video