Detail 01
6-string and 12-string necks
Provides two string configurations on the same guitar.
Product detailSKU #1500000448497
MartinGrand J-28E DN Double-Neck Acoustic-Electric Guitar Natural
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Independent shopping perspective
The Korena take
Built around two distinct necks, the Grand J-28E DN puts 6-string and 12-string acoustic-electric parts on one Grand Jumbo instrument. Its solid spruce top and solid East Indian rosewood back and sides form the acoustic platform, while the custom Fishman Double Neck System carries both necks into an amplified setup. Ebony fingerboards, select-hardwood necks and 20 frets appear on each side. A molded hardshell case is supplied for transport and storage.
Strong match
Who this is for
- Performances that call for both 6-string and 12-string guitar parts from one instrument
- Amplified acoustic sets using the custom Fishman Double Neck System
- Players seeking a Grand Jumbo double-neck with solid spruce and East Indian rosewood construction
Consider the trade-offs
When to look elsewhere
- Players who need a single-neck guitar; this instrument has both a 6-string and a 12-string neck.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Custom Fishman Double Neck System
Supplies the guitar’s onboard acoustic-electric electronics.
Detail 03
Grand J-14 Fret body
Identifies the instrument’s Grand Jumbo, 14-fret body format.
Detail 04
Unique Double Neck X Brace with scalloped tone bars
The bracing is specifically designated for the double-neck construction.
Detail 05
Molded hardshell case
A molded hardshell case is included.
Final check
Know before you order
- 01The instrument combines a 6-string neck and a 12-string neck.
- 02The 6-string neck is 1-11/16 inches at the nut; the 12-string neck is 1-13/16 inches.
- 03Each neck has its own string spacing and fingerboard width measurements.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What necks does the Grand J-28E DN have?
It has one 6-string neck and one 12-string neck.
02Is it ready for amplified use?
Yes. It is fitted with custom Fishman Double Neck System electronics.
03Is a case included?
Yes. A molded hardshell case is included.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsPickups & controls
- Electronics
- Fishman Double Neck System
11 detailsPlayability
- Number of Frets Total
- 20
- Recommended Strings
- Lifespan 2.0 - Light MA540T, Extra Light MA500T
- Scale Length
- 25.4
- Neck Shape
- Modified Low Oval (6 String), 12 String (12 String)
- Nut Material
- Bone
- Orientation
- Left handed
- Saddle Radius
- 16 inch
- Fingerboard Width At 12th Fret
- 2-1/8 in. (6 String), 2-1/4 in. (12 String)
- Number of Strings
- 12 (6-string neck and 12-string neck)
- Bridge String Spacing
- 2-5/32 inch (6 String), 2-5/16 inch (12 String)
- Fingerboard Width At Nut
- 1-11/16 in. (6 String), 1-13/16 in. (12 String)
27 detailsBody & build
- Brace Material
- Spruce
- Bridge Material
- Ebony
- Binding
- Antique White
- Neck Joins Body At
- 14th Fret
- Bridge Pin Material
- Bone
- Finish Top
- Gloss
- Back and Sides Color
- Natural
- Neck Color
- Dark Mahogany
- Bridge Style
- Modern Belly - Drop in Saddle
- Fingerboard Inlay Material
- Mother of Pearl
- Neck Taper
- High Performance Taper
- Back and Side Finish
- Gloss
- Color
- Natural
- Body Size
- Grand J-14 Fret
- Top Material
- Spruce
- Body Finish
- Gloss
- Top Color
- Aging Toner
- Neck Wood
- Select Hardwood
- Fingerboard Inlay Style
- Style 28
- Finish Neck
- Satin
- Fingerboard Material
- Ebony
- Back and Sides
- East Indian Rosewood
- Body Style
- Unique DN Non-Scalloped X with Scalloped Tone Bars
- Bridge Pin Dots
- Tortoise Pattern
- Tuning Machines
- Nickel Open Gear
- Body Shape
- Unique DN Non-Scalloped X with Scalloped Tone Bars
- Side Dots
- White
1 detailsIn the box
- Case or Gig Bag
- Molded Hardshell
7 detailsOther
- Saddle
- Compensated Bone
- Bracing Size
- 5/16 inch
- Endpiece
- None
- Bracing Shape
- Unique DN Non-Scalloped X with Scalloped Tone Bars
- Rosette
- Multi-Stripe
- Knob
- Butterbean
- Bracing Pattern
- Unique Double Neck X Brace
