SIGMA GUITARS GM-1E Metallic White
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Sigma
https://www.sigma-guitars.com
hankins@sigma-guitars.com
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Grand OM: a modern format that has become a standard of versatility
With its Grand OM format, the GM-1E follows the tradition of acoustic guitars designed to offer an excellent compromise: enough body to support strumming, and sufficient definition to highlight nuances in arpeggios. The "E" designation emphasizes its electro-acoustic nature, designed to transition naturally from home to stage without changing your playing habits.
For which guitarists and styles?
The GM-1E is aimed at both demanding beginners and intermediate players looking for a reliable, comfortable, and balanced electro-acoustic guitar. Its Grand OM format and generous nut width encourage clean fingerstyle playing, while remaining comfortable for pop, folk, variety, and vocal accompaniment. The sparkling white finish provides a strong visual presence, ideal for a stage instrument.
The Sound
The solid Sitka spruce top delivers a quick and articulate response: pick attacks remain precise, and finger nuances come through clearly. The combination of mahogany back and sides enhances the midrange and adds a warm color, with a controlled low end that helps the guitar sit well in a mix. The bone nuts contribute to better vibration transmission, offering a more consistent sustain feel and more stable intonation. When plugged in, the Fishman Presys II EQ provides a quickly usable sound, and the built-in tuner is especially handy for quick song changes and on-the-fly adjustments.
Technical specifications
| Model | GM-1E | Fingerboard | micarta |
| Format | Grand OM | Scale length | 25.4" / 645 mm |
| Top | solid Sitka spruce | Nut width | 44.5 mm / 1.75" |
| Back and sides | mahogany | Tuners | chrome oil-bath |
| Finish | sparkling white | Preamp | Fishman Presys II |
| Nuts | bone | Tuner | built-in |
| Neck | mahogany | ||
Questions frequently asked
Is the Sigma Guitars GM-1E Metallic White suitable for fingerstyle?
Its nut width of 44.5 mm and Grand OM body shape favor clean fingerstyle playing. The solid Sitka spruce top provides a clear response to the nuances of arpeggios.
What sound does the combination of solid spruce and mahogany produce?
The solid Sitka spruce top delivers precise attack, while the mahogany back and sides reinforce the midrange and add a warm tone. The low end remains controlled.
Can this guitar be plugged in for stage use?
The electro-acoustic model is equipped with a Fishman Presys II preamp for amplified use. An integrated tuner facilitates adjustments between songs. The metallic white finish offers a striking visual presence on stage.
What is the scale length of this Grand OM?
The scale length is 25.4 inches, or 645 mm, with a mahogany neck and a micarta fingerboard.
Is the Metallic White finish glittery?
This guitar features a metallic white finish. The bone nuts contribute to vibration transmission and stable intonation.



