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Epic journeyThe future sounds brilliant


In the world of sound, there is a striking paradox: While Music has never been so accessible in terms of volume, the quality of the sound itself, and the way technologies manage to restitute it, remains questionable. The purity and thousands of details that make music what it is, continue to elude us.

Devialet was born in 2007, as a response to that very issue. Our goal: making it possible for a larger number of people to listen to perfectly restituted sound using everyday sound devices. Simple enough, come to think of it!

All our teams are hard at work, turning an insane ambition into an extremely concrete reality. Step by step, we have sparked a real technological revolution in the audio world that got in motion thanks to some radical innovations. Since our creation, we have registered 200+ patents filed.

Devialet’s DNA finds its source in the influence of philosophers from the Enlightenment era. Our name is a reference to engineer Guillaume Vialet, a companion of Diderot and contributor to the French Encyclopedia. Vialet is widely known as one the intellectuals who, through their intellectual, cultural and scientific commitment, contributed to the betterment of the world.

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Devialet is also the result of three unconventional characters’ reunion: engineer Pierre-Emmanuel Calmel, entrepreneur Quentin Sannié, and designer Emmanuel Nardin. The three of them have always shared an authentic obsession for innovation and for the emotion music can trigger. They’ve made it their mission to initiate a revolution in the world of audio.

Over the years, the three of them have encountered many obstacles and celebrated important victories. Recently, and to further solidify their ambition, they’ve welcomed Franck Lebouchard as CEO in the team. With Lebouchard’s field of expertise, which lies in his ability to change a company’s scale, the three founders’ original dream and ambition, both born in France, are readily headed towards the rest of the world. The Devialet sound now transcends borders.


ADH invention

Pierre-Emmanuel Calmel patents the world’s first hybrid amplification technology in France and the US.


Pierre-Emmanuel Calmel, Quentin Sannié and Emmanuel Nardin found Devialet, Ingénierie Acoustique de France. Armed with a game-changing technology – ADH® – and an radical vision for the audio of tomorrow, they spark a revolution. The epic journey begins.

First fund raising

Devialet launched its first fundraiser via a unique community of individual shareholders. These mostly entrepreneurs and leaders of major international groups were taken by the technology and the ambition of the Devialet project.

2nd fund raising

Compelled by the game-changing potential of Devialet technologies and innovations, business moguls Bernard Arnault, Marc Simoncini, Xavier Niel and Jacques-Antoine Granjon sign on to the incredible adventure. Their unfailing support lends Devialet the financial weight to become the global leader in high-end sound.

Phantom Launch

The year that changed sound. Devialet unleashes Phantom. The intense emotional experience of ultra-pure & ultra-dense sound with physical impact. A whole new species of speaker that obliterates all existing systems. Revolutionary.

Historical fundraising

Devialet raises 100 million euros from prominent entrepreneurs looking to invest in the technologies of tomorrow. Their landmark contribution helps expand the business over US and Asian markets while bringing Devialet innovations to cars, televisions and connected objects.

Arrival of Franck Lebouchard

Under Franck Lebouchard direction, Devialet intends to accelerate its expansion and announces a new € 51 million financing from some of its historical investors and the European Investment Bank (EIB).
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