The Martin's J-40 acoustic guitar provides for elegance and tone in a classic package. Its tight-waisted jumbo body shape delivers deep tones and great projection you'd expect from a Martin jumbo. This beautiful instrument exemplifies the bold clarity of a real solid East Indian rosewood back and sides with the exquisite tonal balance of a Sitka spruce top.

The J-40's big sound is perfect for live singer/songwriter gigs and studio work with aesthetics appointments that stands out gorgeously on stage.

Martin J-40 jumbo with luxurious appointments.

White binding and herringbone purfling over a sitka spruce top with Indian rosewood back and sides.

Hexagon pearl inlays etched into a black ebony fingerboard.

Intricate pearl abalone rosette with black and white lines.

Black ebony bridge slotted with a bone saddle and bridge pins decorated with pearl dots.

Indian rosewood back and sides with white binding and Style 45 backstrip.

An intricate Style 45 backstrip adds a touch of simple elegance.

Martin headstock with classic martin logo etched in mother of pearl.

Gold tuners with matching pegheads.

Martin hardcase with plush red interior.

Front view of Martin J-40 jumbo.

Back view of Martin J-40 jumbo.

Full Specifications

String Type : Steel

Number of Strings : 6

Body Shape : Jumbo 14-Fret

Body Style : No Cutaway

Left-/Right-handed : Right-handed

Color : Natural

Finish : Gloss

Top Wood : Solid Sitka spruce

Back & Sides Wood : East Indian Rosewood

Body Bracing : Standard X scalloped, Forward shifted

Binding : White/black/white

Neck Wood : Select Hardwood

Neck Shape : Low profile

Fingerboard Material : Solid Black Ebony

Fingerboard Inlay : Reduced hexagon

Number of Frets : 20

Scale Length : 25.4"

Tuning Machines : Gold with large buttons

Bridge Material : Solid Ebony

Nut/Saddle Material : Bone

Nut Width : 1.6875"

Body Length : 20.125"

Body Width : 16"

Body Depth : 4.875"

Overall Length : 40.625"

Strings : Martin SP Lifespan Phosphor Bronze Medium Gauge

Case Included : Hardshell

Manufacturer Part Number : 10J40

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