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All packaging and well looked after. They ve been used to power a pair of JBL K2S9800 s possibly the best speaker yet produced. Those are sold so if you want to hear the combination I m West of London and you will have to hurry. The price is fair and firm. I m selling up all - otherwise these would stay. I ve not heard better. Can be used as 2 x D200 s of course so you can always sell one.
This is a seller’s market at £5,000, because it sits well above the typical used level: the median comparable is £2,508, the 75th percentile is £3,421, and this asking price is about £1,600 over even that upper quartile. For a pair in good condition, it’s clearly ambitious rather than fair-market pricing.
That said, these are respected power amps with real appeal for buyers who want serious grip, scale, and effortless drive, especially with demanding speakers. If the unit is fully original, well documented, and comes with the right pairing history, there can be upside in owning a clean example—but at this price you’d want exceptional provenance, recent servicing if applicable, and complete accessories to justify stretching.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Devialet, a Paris-based audio innovator, traces its roots to 2007, when French engineer Pierre-Emmanuel Calmel founded the company alongside sound enthusiasts Quentin Sanni and designer Emmanuel Nardin. Calmel's breakthrough came earlier, in 2004, with the development of ADH (Analog Digital Hybrid) technology—a fusion of Class A analog warmth and Class D digital efficiency—that powered the firm's inaugural amplifier prototype. This heritage of French engineering excellence has yielded over 200 patents, positioning Devialet as a beacon of acoustic advancement.
The brand focuses on high-fidelity amplifiers like the Expert series and iconic wireless speakers such as the Phantom line, renowned for their compact form and extreme performance, including models claiming analog-grade sound at frequencies up to 2,990 USD for the Gold Phantom. Devialet has expanded into earbuds, soundbars, and luxury collaborations, from Opéra Garnier gilded editions to Louis Vuitton DJ trunks and Berluti travel cases, blending cutting-edge tech with haute craftsmanship in machine-milled aluminum.
Devialet commands the high-end luxury audio market, beloved by celebrities like Jay-Z and even the French President, for its revolutionary sound that "hears the unheard." Far from mid-tier or vintage, it embodies niche boutique prestige—modern, innovative, and aspirational for discerning hi-fi buyers seeking unparalleled sonic magic in sleek, future-proof designs.
See all Devialet listings on RADAR.
