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Compared with the obvious alternative of buying a conventional power amp at this money, US$2,000 is a fair price for an SDA-2400, though not a bargain. It sits above the recent comparable median of US$1,646 and just below the 75th percentile of US$2,027, so the unknown condition matters: a clean, fully tested example is reasonably priced, while a rough or incomplete one should be negotiated down.
The appeal is substantial power in a compact, cool-running Class-D chassis: 200 watts per channel into 8 ohms and 400 watts into 4 ohms, with strong speaker-driving ability. RCA, XLR, optical, and coaxial inputs add unusual flexibility, letting it serve as either a traditional power amp or a direct digital setup. Confirm that all inputs work, check for hum or standby faults, and verify whether the rack ears and remote—if relevant to the intended setup—are included.
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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