SIGMA GUITARS Standard Series Sdr-28
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- This item is covered for 3 years
Essential Information About the SDR-28 Guitar
Essential Information About the SDR-28 Guitar
- Dreadnought body: large volume reserve, deep bass, and ideal projection for pick playing.
- Solid Sitka spruce top: crisp attack, excellent dynamics, and beautiful sound opening over time.
- Solid Indian rosewood back and sides: rich lows, bright highs, and generous sustain.
- Ebony fretboard and bone nuts: precise feel, well-defined notes, and optimal vibration transmission.
Manufacturer Information
Sigma
https://www.sigma-guitars.com
hankins@sigma-guitars.com
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Safety manager:
SAICO SAS
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A "28" Dreadnought in the Great Acoustic Tradition
The SDR-28 embodies the spirit of traditional dreadnoughts, appreciated for their balance between power, depth, and clarity. With its solid spruce and solid rosewood combination, it aims for a very musical wide-band response, designed to support both accompaniment and melody lines, while maintaining a premium acoustic character. Its glossy natural finish highlights a sober and timeless aesthetic.
For Which Guitarists and Styles
Thanks to its body shape and solid woods, the SDR-28 is particularly suited for intermediate to advanced guitarists seeking an expressive acoustic capable of handling energetic playing. It excels in folk, country, acoustic pop, bluegrass, and vocal accompaniment. In fingerstyle, it offers great definition, with a comfortable nut width for chords and fast arpeggios.
Sound Characteristics
The solid Sitka spruce top provides a clear attack and a wide dynamic range: it responds equally well to gentle playing and strong strumming, with articulation that remains clear. The solid Indian rosewood back and sides enrich the spectrum with ample lows and complex harmonics, while adding a sense of depth and natural sustain. The ebony fretboard and bridge promote precise response and a controlled feel under the fingers, while the bone nuts enhance note definition and projection, particularly useful for open chords and pick riffs.
Recommended Compatible Accessories
Technical specifications
| Format | Dreadnought | Fingerboard | Ebony |
| Left handed | No | Neck Type | Glued |
| Cutaway | No | Electroacoustic | No |
| Strings | Steel | Color | Natural |
| Nbr of strings | 6 | Finishing | Satin |
| Top | Spruce | Hardware | Chromed |
| Back&Sides | Rosewood | ||
| Model | SDR-28 | Scale length | 25.4" / 645 mm |
| Shape | dreadnought | Nut width | 42.9 mm / 1.69" |
| Back and sides | solid Indian rosewood | Nuts | bone |
| Finish | glossy natural | Bridge | ebony |
| Neck | mahogany | Tuners | Grover open chrome |
| Fretboard | ebony | Case | soft case SSC-D included |
Questions frequently asked
Is the Sigma SDR-28 suitable for folk and bluegrass?
Its dreadnought body shape, solid Sitka spruce top, and solid Indian rosewood back provide a wide projection suited for folk, country, and bluegrass. Picked rhythms benefit from a strong low-end foundation.
What woods make up the body of this guitar?
The top is solid Sitka spruce, while the back and sides are solid Indian rosewood. The fingerboard and bridge are made of ebony, with bone nuts.
What is the nut width of the SDR-28?
The nut width is 42.9 mm, or 1.69 inches. This dimension supports open chords and arpeggios, with a scale length of 645 mm (25.4 inches).
Is the Sigma SDR-28 electro-acoustic?
This guitar is not electro-acoustic: no onboard electronics are specified. Amplification therefore requires adding an appropriate external solution. The dreadnought body is designed to deliver strong acoustic projection.
Is a case included with the SDR-28?
A Sigma SSC-D soft case is included.



