Lowden O-20

Hand made at the Lowden family run shop in Northern Ireland. The Lowden O-20 is a warm, open, and deeply resonant take on the classic jumbo acoustic. With its large O-body design, sitka spruce top, and mahogany back and sides, the O-20 offers a beautifully natural voice—full, woody, and expressive—while showcasing the signature Lowden sustain and responsiveness players love.

Tone & Build

The O-body is the largest shape in the Lowden lineup, known for its expansive projection and rich low-end presence. On the O-20, a solid sitka spruce top brings clarity, balance, and wide dynamic range, making it equally comfortable for gentle fingerstyle or more forceful rhythm playing. The solid mahogany back and sides add warmth, focus, and a clean midrange that keeps the guitar’s big voice controlled and musical.

The result is a tone that feels spacious but not overwhelming—open and resonant, yet balanced enough for detailed playing. Full chords bloom beautifully, single notes ring with purity, and the guitar maintains an intimate responsiveness despite its size.

A comfortable five-piece mahogany neck and ebony fingerboard provide smooth playability and long-term stability. True to the 20 Series, the build is understated and elegant, prioritizing tone and craftsmanship over ornamentation.

Why Players Choose the O-20

• Big, open Lowden voice with warm mahogany character

• Excellent projection without sacrificing clarity

• Responsive sitka top that works across fingerstyle, singer-songwriter, and accompaniment styles

• Full, rich lows and clean, articulate mids

• Simple, timeless aesthetics focused on tone and feel

At Tree Bone Guitars

The O-20 is an inspiring instrument for players who want a large-bodied acoustic that stays musical and balanced. It has a natural honesty to its sound—warm, resonant, and expressive without unnecessary flash. Whether you’re recording warm rhythm tracks, exploring spacious fingerstyle arrangements, or simply enjoying its immersive voice at home, the O-20 delivers a deeply satisfying playing experience.

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Free standard shipping within the Continental U.S. Delivery typically takes 5-8 business days. Express Shipping is available for an additional charge.

Returns:

Web orders- returns accepted within 5 days of delivery for new products and a refund is issued minus the cost of return shipping or a customer may ship back at own expense for a full refund.

In-Person purchases- returns are accepted within 5 days of purchase for new products.

Show Returns- For purchases made at shows, expo's, or meets, the return period for new items expires at the conclusion of the show's sheduled hours and dates.

Used and demo items are sold as described and may not be returned unless they arrive materially different than described. In-person purchases of used items are sold As-Is.

All returns must be in original packaging and in original, unused condition. Damages and signs of use will be assessed and charged against a refund if found.

Shipping damage- If products are damaged during shipping, it must be reported to us within 24 hours of receipt. All packaging must be retained until a damage claim is complete.