SIGMA GUITARS All Solid Series Somr-45L Lh
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Sigma
https://www.sigma-guitars.com
hankins@sigma-guitars.com
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The Orchestra Model Format: A Benchmark for Balance and Nuance
The OM (Orchestra Model) size has established itself as a classic for guitarists seeking an acoustic guitar capable of being nuanced in fingerstyle while remaining comfortable for rhythm playing. With its body slimmer and more compact than a dreadnought, the SOMR-45L emphasizes definition, articulation, and a very "readable" sound note by note, while retaining depth thanks to the solid rosewood.
Who Is This Left-Handed SOMR-45L For?
This left-handed acoustic guitar is particularly suited for intermediate to advanced musicians who want an expressive and versatile OM. It excels in fingerstyle, folk, pop, vocal accompaniment, but also remains very convincing with pick playing when seeking a balanced sound rather than an oversized bass.
Sound Characteristics
The solid Sitka spruce top provides a clear attack, a great dynamic range, and excellent projection: it is a wood appreciated for its ability to stay precise when played loudly while responding finely to nuances. The solid Indian rosewood back and sides enhance the depth of the low register, enrich the harmonics, and give a more "full" character to the sound, with naturally generous sustain. The combination of solid spruce + solid rosewood thus offers a very musical palette: bright highs, detailed mids, and an elegant bass foundation, ideal for open chords as well as more complex voicings. The ebony fingerboard and bridge contribute to the sensation of quick response and clear note definition.
Recommended Compatible Accessories
To preserve the stability of a fully solid acoustic guitar, a hygrometer and a case humidifier are strongly recommended. A chromatic tuner, a guitar stand, and a microfiber cloth ideally complement daily use, without compatibility concerns.
Technical specifications
| Format | Orchestra | Fingerboard | Ebony |
| Left handed | Yes | Neck Type | Glued |
| Cutaway | No | Electroacoustic | No |
| Strings | Steel | Color | Natural |
| Nbr of strings | 6 | Finishing | Matt |
| Top | Spruce | Hardware | Gold |
| Back&Sides | Rosewood | ||
| Model | SOMR-45L | Inlays | mother-of-pearl |
| Back and sides | solid Indian rosewood (Grade A) | Nut material | bone |
| Finish | natural gloss | Tuners | gold Grover open-gear |
| Bridge | ebony | Saddle material | bone |
| Neck | mahogany | Case | SSC-OM included |
| Nut width | 44.5 mm / 1.75" | Configuration | left-handed model |
Questions frequently asked
Is the Sigma SOMR-45L designed for left-handed players?
The setup is fully left-handed, featuring 6 steel strings and a nut width of 44.5 mm. The glued-in neck is mahogany and the fingerboard is ebony.
What sound does the OM shape with solid rosewood offer?
The Orchestra Model shape promotes a quick response and clear note separation. The solid Sitka spruce top provides a crisp attack, while the solid Indian rosewood back and sides support harmonics and sustain. This construction is suitable for arpeggios, fingerstyle playing, and rich chord voicings.
Does the SOMR-45L have built-in electronics?
No electronics are specified: this guitar is acoustic and not electro-acoustic.
What case is supplied with this guitar?
The SSC-OM case is included for transport and storage. A hygrometer and case humidifier are recommended to preserve the all-solid wood construction.
What are the materials and finish of this OM guitar?
The tonewoods combine a spruce top, solid rosewood back and sides, and an ebony bridge. The finish is matte, natural color, with gold Grover open-gear tuners and bone nuts.



