Sigma Guitars GJM12E

Item: GIT0052978-000
Sigma Guitars GJM12E Product Image
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Grand-jumbo acoustic guitar, 12-string, solid Sitka spruce top, laminated mahogany body, mahogany neck, micarta fretboard, pick...  All product info

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Product information - Sigma GJM12E

12-string acoustic guitar with grand-jumbo body, solid Sitka spruce top, mahogany body and pickup system

With the Sigma GJM12E the manufacturer Sigma presents a voluminous grand-jumbo acoustic guitar with 12 strings , high-quality materials and a powerful double-choir sound. The bright tone is significantly influenced by the solid spruce top , harmonising perfectly with the back and sides of the laminated mahogany body . The flat mahogany neck with its micarta fretboard is perfectly matched to the other parts and, in combination with a generous nut width of 47.6 mm and scale length of 645 mm , provides excellent playability. Another highlight is Sigma's own pickup system , which includes a 3-band equalizer and an integrated tuner . The protruding head plate is equipped with chrome-plated die-cast tuners , which enable precise tuning of the 12 steel strings . A compensated saddle and a bone nut ensure a clean intonation in all 20 frets . The Sigma GJM12E is completed by a wafer-thin matt varnish , which not only allows the wood to vibrate freely but also emphasises the even grain of the material.

Sigma GJM12E front
The Sigma GJM12E is a giant 12-string guitar with a rich and powerful sound.

The Sigma GJM12E at a glance:

  • 12-string grand-jumbo acoustic guitar
  • Solid Sitka spruce top 
  • Laminated mahogany body
  • Bone nut and saddle
  • Mahogany neck and Micarta fretboard
  • Compensated bone saddle and nut
  • 645 mm scale length and 47.6 mm nut width
  • Chrome-plated die-cast tuners
  • Sigma pickup system with integrated tuner
  • Matt finish 


  • Manufacturer: Sigma Guitars
  • Design: Grand Jumbo 14-fret
  • Cutaway: No
  • Top: Sitka Spruce
  • Solid Top: Yes
  • Finish Top: Matte
  • Back & Sides: Mahogany
  • Solid back & sides: No
  • Finish Back & Sides: Matte
  • Neck: Mahogany
  • Neck Profile: Low Profile
  • Fretboard: Micarta
  • Inlays: Dot
  • Number of Frets: 20
  • Nut type: Bone
  • Nut width in mm: 47.6
  • Scale in mm: 645
  • Tuners: Die-Cast
  • Bridge: Micarta
  • Bridge Inlay: Bone
  • Hardware: Chrome
  • Number of Strings: 12
  • Manufacturer pickups: Sigma
  • Tuner: Yes
  • Rosette: Three Ring
  • Pickguard: Tortoise
  • Bridge Pins: Plastic
  • Colour: Natural
Sigma Guitars GJM12E Product ImageSigma Guitars GJM12E
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