Mastering engineer for artists and producers worldwide.
Driven by the art of mastering and a deep passion for every sonic detail, Daniel O’Connell views mastering as the crucial final stage of music production: an essential step to maximize the sonic potential of any project. His methodology integrates cutting-edge analog equipment with modern digital technology; by combining precision tools with carefully selected hardware, he ensures that every piece of music achieves the necessary character and impact, while guaranteeing consistent translation across all playback systems and streaming platforms.
Specializations include Stereo and Stem Mastering, Vinyl Mastering, and Dolby Atmos. Additionally, Co-Mixing services are available for expert collaboration during the mixing process.
Whether polishing a full album or elevating the quality of a single track, the approach at O’Connell Mastering is always personalized, treating every work with the utmost respect and technical excellence.
Certified Apple Digital Masters Provider
O’Connell Mastering is officially recognized as an Apple Digital Masters provider. This certification ensures we provide Apple Music with the best possible audio quality, delivering sound exactly as the artists and engineers intended. We are committed to maintaining the highest fidelity and meeting the rigorous standards required for high-resolution streaming.
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About Me : Daniel O'Connell
Daniel O’Connell has made music the defining thread of his career. His journey began in 2004 as a musician for Dubies, a period spanning 15 years during which the band recorded three albums and toured extensively across Argentina and Europe—notably winning the Rototom Sunsplash Contest in 2012. This era served as a masterclass in the intricate nuances of the creative process.
O’Connell solidified this foundation with a degree in Sound Engineering (Cetear, 2007) before establishing “312 Estudio” in Rosario, Argentina. For a decade, the studio served as his creative headquarters, where he engineered hundreds of productions for prominent artists such as Rosario Smowing, Coki & the Killer Burritos, and Carmina Burana.
Driven by an unwavering commitment to excellence, Daniel has traveled globally to learn from industry legends including Geoff Emerick, Moses Schneider, and Daniel Ovie. He further refined his craft at prestigious institutions such as SAE Barcelona and the London School of Sound.
In 2022, following a decade of continuous evolution, he launched O’Connell Mastering in the vibrant city of Barcelona, Spain. His methodology rejects shortcuts, favoring an artisanal fusion of high-end analog warmth and digital precision—a combination he deems essential for unlocking the full potential of every track.
His objective remains clear: to craft a sound that moves people and creates a genuine connection between the artist and their audience, polishing every project until it resonates with its own unique light.
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I value a close connection with every artist I work with. Tell me about your project, and let’s create a tailored proposal to bring your vision to life.