

Martin J-40 Jumbo Acoustic Guitar #2388
FAST SHIPPING!
Most items usually ship within 24 hours. Exceptions will be noted below.
Questions about this instrument?
Every one of us plays. Virtual demos available on request.

Description
The sheer acoustic presence and shimmering harmonic depth produced by this luxury jumbo model establish an impressive standard for full-bodied acoustic instruments. Martin engineered the J-14 fret body size by combining the depth of a dreadnought with the tight waist of a grand auditorium, pairing a solid spruce top with solid East Indian rosewood back and sides. Driven by forward-shifted, 5/16-inch Golden Era (GE) scalloped X-bracing and a traditional dovetail neck joint, this unique body geometry yields a thunderous, blooming low end, a lush, complex midrange, and sparkling, crystalline trebles. Notes blossom off the soundboard with immense dynamic headroom and balanced clarity, ensuring strummed chords never get muddy and intricate fingerstyle runs project cleanly across any room.
Visually, the instrument serves as a showcase of high-end Martin craftsmanship, blending classic Style 40 prestige with pre-war aesthetic cues. The full body is treated to a crystal-clear high-gloss finish that highlights the tight grain of the spruce top, finished in a rich Aging Toner, and the dark, chocolate-toned rosewood back and sides. Antique white binding with multi-stripe purfling outlines the body, heelcap, endpiece, fingerboard, and headstock. Shimmering abalone rosette purfling pairs with bone bridge pins dotted in abalone, a Style 45 backstrip, and reduced abalone hexagon fingerboard inlays. Up on the rosewood headplate, a vertical Block Inlay Golden Era Martin logo in abalone sits flanked by gold open-gear tuning machines with butterbean knobs.
In the hands, it behaves with remarkably fluid, fatigue-free playability across its entire 25.4-inch scale length. The genuine mahogany neck is carved into Martin's GE Modified Low Oval profile with a High-Performance Taper, pairing a modern, fast neck feel with a comfortable 1 3/4-inch bone nut for optimal string spacing. Thanks to precision factory Plek processing, the frets on the bound ebony fingerboard arrive perfectly leveled for buzz-free action and effortless fretting right out of the box. An ebony bridge with a drop-in compensated bone saddle guarantees optimal string energy transfer straight into the soundboard. Shipped in a custom hardshell case, the J-40 Gloss is built for players who want maximum tonal volume and full visual appointment.
Serial #3032388 — this listing is for one specific instrument. Photos of this exact guitar go up once it clears our 23-Point Professional Inspection.
Specifications
Overview
- Body Shape
- Jumbo
- Model
- J-40
- Condition
- Dread-Not Guarantee, New
- Year
- 2025
- Top Wood
- Spruce
- Back & Sides
- East Indian Rosewood
- Scale Length
- 25.4"
- Nut Width
- 1.75"
- Number of Strings
- 6
- Handedness
- Right-Handed
- Warranty
- Limited Lifetime
Body
- Top Wood
- Spruce
- Top Construction
- Solid
- Back & Sides Wood
- East Indian Rosewood
- Back & Sides Construction
- Solid
- Torrefied / Thermo-Cured
- No
- Body Bracing
- Forward-Shifted X Brace, Golden Era Scalloped
- Bracing Material
- Spruce
- Rosette
- Abalone with Multi-Stripe
- Top Purfling
- Multi-Stripe
- Binding
- Antique White
- Pickguard
- Faux Tortoise
- Top Finish
- Gloss
- Color
- Aging Toner
Neck & Fingerboard
- Neck Wood
- Genuine Mahogany
- Neck Shape
- Golden Era (GE) Modified Low Oval, High-Performance Taper
- Neck Joint
- Dovetail
- Fingerboard
- Ebony
- Fingerboard Inlay
- Reduced Hexagon in Abalone
- Fingerboard Binding
- Antique White with Multi-Stripe
- Scale Length
- 25.4"
- Nut Width
- 1.75"
- Nut Material
- Bone
- Number of Frets
- 20
- Frets to Body
- 14
- Neck Finish
- Satin
Hardware & Electronics
- Tuning Machines
- Gold Open Gear
- Bridge
- Golden Era Modern Belly — Drop-In Saddle
- Bridge Material
- Ebony
- Bridge Pins
- Bone with Abalone Dots
- Saddle
- Compensated Bone
- Hardware Color
- Gold
- Headstock Veneer
- East Indian Rosewood
- Headstock Inlay
- Block Inlay Golden Era
In the Case
- Case / Gig Bag
- Yes — Hardshell Case
- Strings
- Martin Authentic Acoustic Lifespan 2.0 Phosphor Bronze — Medium
Why Choose The Acoustic Shoppe
Inspected & Set Up On-Site
Every instrument gets our 23-point professional setup by our in-house repair techs before it ships.
Warranty Handled For You
Authorized dealer for every brand we carry — we deal with warranty concerns on your behalf.
Musicians, Not Salespeople
Our whole team plays. Virtual consultations and honest recommendations — we know you by name.
NAMM Top 100 Dealer
Voted a NAMM Top 100 dealer for over a decade — a small shop trusted worldwide.


