alejandro ramirez | o3 guitars
EST. 2005 | spain
Bass | Electric Guitars
ALEJANDRO RAMIREZ | Luthier
“Every instrument we create is a dialogue between tradition and innovation.”
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Original models like Hydrogen, Radon, Tungsten, Xenon, and Iodine reflect O3’s design-science ethos: multiscale options, sculpted lines, and thoughtful electronics that prioritize playability and tone without sacrificing character. O3 does not build replicas or series runs; each guitar is a unique creation, often featuring intricate inlay and materials that tell a story as compelling as the sound.
o3 Guitars
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O3 Guitars Xenon [Xe] & Hydrogen [H] Demo | Martinillo Metal Guitar Test
Watch metal guitarist Martinillo put two stunning O3 Guitars models — the Xenon [Xe] and Hydrogen [H] — to the test in his home studio. Crafted by Alejandro Ramírez in Almería, Spain, these instruments blend Spanish tradition with modern innovation, precision, and power. Experience their tone, design, and playability in this exclusive performance.
Ascension Unveiled | NAMM 2024
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Join Brian from B’s Music Shop at the 2024 NAMM Show for an emotional unveiling of “Ascension” — a breathtaking tribute guitar by Alejandro Ramírez of O3 Guitars (Almería, Spain). Dedicated to the loving memory of his mother, this intricate work features over 500 individual inlay pieces of brass, metal, stone, and mother of pearl.
Selected for the Boutique Guitar Showcase Art Installation, Ascension represents the guitar as a symbol of life, loss, and transcendence — merging art, emotion, and craftsmanship at the birthplace of the modern guitar. Experience how Alejandro redefines the Spanish lutherie tradition with modern electric design and profound storytelling.
boutique guitar showcase en tour | 2018 - 2023
“My greatest inspiration comes from my family; everything I build is ultimately for them.”
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Alejandro designs and builds every O3 himself, pursuing instruments that feel intuitive and urge you to play—guitars you recognize instantly by their shape and, more importantly, their character. Outside the bench, he’s a family man—a husband and father of two—whose sense of purpose is shaped by craft, place, and the people he builds for.
ALEJANDRO RAMIREZ | Luthier
gallery | o3 Custom guitars