SIGMA SDM-18 DREADNOUGHT NATURAL SOLID SPRUCE TOP ACOUSTIC GUITAR
SIGMA SDM-18 DREADNOUGHT NATURAL SOLID SPRUCE TOP ACOUSTIC GUITAR
Out of stock
Condition
Good condition, plays great. The odd mark here and there as expected for a used instrument.
Overview
The Sigma SDM-18 is a dreadnought acoustic guitar that blends elegant simplicity with high-end tonal performance. Built to deliver a rich, resonant sound, it features a solid Sitka spruce top paired with solid mahogany back and sides—an ideal tonewood combination for players seeking warmth, clarity, and projection. The natural gloss finish enhances the wood's visual character, while the dovetail neck joint and bone nut ensure excellent resonance and sustain. Whether fingerpicked or strummed, this guitar sings with balance and depth.
Specifications
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Body shape: Dreadnought
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Top: Solid Sitka spruce
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Back & sides: Solid mahogany
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Neck: Mahogany
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Fingerboard: Ebony
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Scale length: 25.4" (645 mm)
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Neck joint: Dovetail
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Nut & saddle: Bone
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Bridge: Ebony
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Finish: High gloss natural
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Tuning machines: Grover open-gear tuners
Summary
Perfect for singer-songwriters, session musicians, or anyone who appreciates a traditional acoustic sound, the Sigma SDM-18 delivers professional quality at a fantastic value. Its all-solid wood construction ensures tonal richness that will only improve with age, making it a worthy companion for years to come.
Why Buy From Us
Why Buy From Us
✔ Every item is carefully inspected & ready to play/use
✔ Over 17,000+ positive reviews from happy customers
✔ Fast, Free UK Delivery on orders over £49.99
✔ 30-Day Hassle-Free Returns
Shipping & Delivery
Shipping & Delivery
- Free UK delivery on orders over £49.99
- Tracked, secure, and carefully packaged
- Next-day dispatch on most orders
Returns & Guarantee
Returns & Guarantee
- 30-day returns for peace of mind
- Items must be returned in the same condition as sold
- Full refunds processed quickly
- If anything isn’t right, we’ll make it right
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Rated ★★★★★ by 17,000+ UK players — here’s what they’re saying:
FAQS
Shoot our team an email & we’ll get back to you ASAP
Are the items checked before shipping?
Are the items checked before shipping?
Yes. Every instrument and accessory is carefully inspected, cleaned, and securely packed so it’s ready to use straight away.
Do you offer free delivery?
Do you offer free delivery?
Orders over £49.99 qualify for free, tracked UK delivery. Under that, there is a small charge of £2.49 per order.
What is your return policy?
What is your return policy?
We offer 30-day hassle-free returns on all orders. Changed your mind? Just send it back.
Can I trade in or sell my gear?
Can I trade in or sell my gear?
Absolutely. Use our Sell/Trade service to get a free valuation and easy collection across the UK.
How quickly will I get my order?
How quickly will I get my order?
Most items ship the same or next working day. Guitars and amps are always shipped fully protected.

