SIGMA GUITARS SDR-41SP Custom
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- This item is covered for 3 years
Essential Information About the SDR-41SP Guitar
Essential Information About the SDR-41SP Guitar
- Dreadnought format: strong projection, ample bass, and excellent presence in strumming.
- Premium solid woods: solid Sitka spruce top and solid Indian rosewood back and sides for a rich and mature sound.
- Comfort and precision: mahogany neck, ebony fingerboard, and generous nut width for a comfortable left hand.
- Ready-to-play pack: delivered with a soft case SSC-D and equipped with gold Grover open tuners.
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 Custom Series Dreadnought Designed for High-End Luthiery Enthusiasts
The SDR-41SP belongs to a Custom series focused on demanding material choices and refined aesthetics. With its dreadnought format and gloss natural finish, it clearly targets guitarists looking for an expressive acoustic with true harmonic depth and a dynamic response capable of following both energetic attacks and more nuanced playing.
For Which Guitarists and Styles
Thanks to its dreadnought size and Sitka spruce/rosewood combination, this acoustic is particularly suited for intermediate to advanced guitarists seeking an inspiring instrument, but it remains accessible to motivated beginners who want to start on an ambitious guitar. It excels in folk, country, acoustic pop, vocal accompaniment, and is very comfortable in both strumming and flatpicking. Its wider nut width also favors more articulated fingerpicking.
Sound Characteristics
The solid Sitka spruce top provides a clear attack, beautiful clarity, and a wide dynamic range: the harder you play, the more the guitar responds, with definition that remains clear. The solid Indian rosewood back and sides enrich the spectrum with deep lows, bright highs, and complex harmonics, ideal for achieving a sense of width and "3D" in tuning. The dreadnought format enhances projection and acoustic volume, with a solid low end and naturally generous sustain. The bone nuts (headstock and bridge) contribute to efficient vibration transmission, with a more precise attack and more stable note sustain.
Recommended Compatible Accessories
To preserve the luthiery over time, a guitar humidifier is recommended (useful in winter or heated rooms). A chromatic tuner (clip-on or pedal) and a guitar stand are simple and reliable daily choices. For playing, plectrums of different thicknesses allow exploring the full dynamics of the dreadnought format.
Technical specifications
| Model | SDR-41SP | Fingerboard | ebony |
| Series | Custom | Scale length | 25.4 inches / 645 mm |
| Format | Dreadnought | Nut width | 44.5 mm / 1.75 inches |
| Top | solid Sitka spruce | Nuts | bone (headstock nut and bridge nut) |
| Back and sides | solid Indian rosewood | Tuners | Grover open, gold finish |
| Finish | gloss natural | Case | soft case SSC-D included |
| Neck | mahogany | ||
Questions frequently asked
Is the Sigma Guitars SDR-41SP Custom suitable for flatpicking?
Its dreadnought body shape and solid Sitka spruce top provide a clear attack and dynamic range well suited for flatpicking. The solid Indian rosewood delivers deep bass and complex overtones.
What is the nut width of the SDR-41SP?
The nut width is 44.5 mm, or 1.75 inches. This dimension allows for comfortable finger articulation when playing arpeggios.
What woods make up this Sigma dreadnought?
The top is made of solid Sitka spruce, while the back and sides are made of solid Indian rosewood. The neck is mahogany and the fingerboard is ebony. The nut and saddle are made of bone.
Is a gig bag included with the guitar?
A Sigma SSC-D soft case is included with the instrument.
What tuning machines are fitted on this model?
Open-back Grover tuning machines with a gold finish are mounted on the headstock. They complement a build featuring a 645 mm scale length, or 25.4 inches.



