Sigma SDM-18S Acoustic Guitar

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Key Features

  • All-solid Sigma acoustic
  • Mahogany back and sides offer a warm tonal balance
  • Dual-action truss rod ensures easy neck adjustment
  • Grover Nickel tuners with butterbean knobs provide precise tuning stability

Sigma SDM-18S Acoustic Guitar Overview

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The Sigma SDM-18S Acoustic Guitar is crafted for exceptional resonance and superior tonal quality, combining traditional construction with modern playability. It features a solid Adirondack spruce top of AA grade, known for its dynamic response and clarity. This is paired with solid mahogany back and sides, which enrich the overall sound with warm, balanced tones. The guitar's dovetail neck joint enhances its structural stability and improves sound transmission between the neck and body.


Designed to meet the demands of both professional musicians and enthusiasts, the Sigma SDM-18S includes a low-profile mahogany neck and ebony fingerboard, offering comfortable playability across genres. Dual-action truss rods provide reliable neck adjustment options to maintain optimal string action and playability. Grover Nickel tuning machines with butterbean knobs ensure stable and precise tuning, while the polished gloss finish with ageing toner gives the instrument a classic, timeless look.

Product Ref: 303371

Full Description

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Exceptional tonewoods

The Sigma SDM-18S features a top made from solid Adirondack spruce, renowned for its bright, powerful sound that projects well. This AA-grade spruce top not only enhances the guitar's volume and clarity but also improves with age, developing a richer tone. The back and sides are crafted from solid mahogany, adding warmth to the sound and providing a perfect counterbalance to the spruce's sharpness, which results in a harmoniously balanced audio output suitable for a variety of musical styles.

Precise tuning stability

Equipped with Grover Nickel side mounts and butterbean knobs, the tuning machines on the Sigma SDM-18S are a highlight for any musician valuing long-lasting, precise tuning stability. These high-quality tuners ensure that the guitar maintains its tuning regardless of the environmental conditions or the duration of play. This feature is essential for both live performances and studio sessions, where consistent sound quality is crucial.

Enhanced playability

The design of the Sigma SDM-18S's neck and fingerboard is focused on comfort and playability. The neck is fashioned from mahogany with a low profile, making it easy for musicians to navigate the frets. Paired with an ebony fingerboard, known for its smooth, dense surface that facilitates fast playing and a crisp response, this guitar meets the demands of both intricate fingerpicking and bold strumming techniques.

Durable and elegant design

The Sigma SDM-18S not only sounds exceptional but also stands out with its polished gloss finish and aging toner that give it a visually striking and vintage appearance. This finish not only protects the guitar from wear and tear but also enhances its aesthetic appeal, making it a standout piece both on stage and in the studio. The durable construction ensures that the guitar can withstand the rigours of touring, making it a reliable choice for professional musicians.

Specifications

  • Product Name: Sigma SDM-18S Acoustic Guitar
  • Product Code: SIG-GTR-SDM-18S

Body

  • Body Size: D-12 Fret
  • Construction: Dovetail Neck Joint
  • Top: Solid Adirondack Spruce (AA Grade)
  • Back & Sides: Solid Mahogany
  • Finish: Polished Gloss with Aging Toner
  • Case: SSC-D Softshell Case

Neck & Fretboard

  • Neck Material: Mahogany, Low Profile
  • Fingerboard: Ebony
  • Scale Length: 25.4” (645 mm)
  • Neck Width at Nut: 1-3/4” (44.5 mm)
  • Truss Rod: Two way Truss Rod

Hardware

  • Tuning Machines: Grover Nickel Side Mounts with Butterbean Knobs
  • Nut & Saddle: Bone
  • Strings: D’Addario EXP16