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Condition is unknown, but at US$3,999 this sits well below the 25th percentile of recent used comps at US$4,412, so it reads as a strong buy rather than a merely fair one. Against a median of US$5,471 and a 75th percentile of US$6,313, the asking price leaves real room for a buyer to feel ahead of the market.
That makes sense for a Lyngdorf piece: the TDAI-3400 is prized for its room correction, clean integrated power, and flexible digital connectivity, so demand stays healthy on the used market. If it’s complete and functioning properly, the upside is straightforward: you’re getting a high-end, current-gen-style integrated at a price that’s meaningfully under norm, with only the usual buyer checks on accessories, remote, and setup history.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Lyngdorf Audio was founded in 2005 by Danish audio innovator Peter Lyngdorf, who brought decades of industry experience to the venture. Lyngdorf's career in high-fidelity began in 1975 as a distributor of home entertainment components, followed by the establishment of HiFi Klubben, a Northern European retail chain, and the creation of DALI (Danish Audiophile Loudspeaker Industries) in 1983. This heritage of audio entrepreneurship and technical expertise informed the company's mission to achieve absolute perfection in sound reproduction through advanced research and development.
Lyngdorf Audio specializes in high-end digital amplifiers, preamplifiers, and surround processors built around proprietary technologies including the Equibit digital amplification system and RoomPerfect room correction software. The company is known for pioneering fully digital amplification and for integrating sophisticated digital signal processing into premium audio systems. Their product philosophy emphasizes the transformation of digital audio data directly into optimized speaker-driving signals, eliminating traditional analog conversion stages.
The brand occupies the luxury segment of the high-end audio market, positioning itself among the world's most sophisticated audio manufacturers. This positioning was solidified in 2007 when Steinway & Sons, the legendary piano maker, granted Lyngdorf exclusive rights to develop audio systems under the Steinway Lyngdorf brand name. Today, Lyngdorf Audio operates as part of the broader Steinway Lyngdorf portfolio, serving discerning audiophiles and professionals who prioritize cutting-edge digital technology and meticulous sound reproduction over conventional amplification approaches.
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