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Are you after a flexible digital preamp as much as a DAC? At GBP £204, this looks like a strong used buy rather than merely fair value. The C 510 originally sat in serious enthusiast territory, and that price is low enough to make the listing worth pursuing, assuming it is fully working and complete.
Its appeal is the unusually broad digital connectivity: asynchronous USB, AES/EBU, coaxial, optical and two-channel HDMI, with both RCA and balanced XLR analogue outputs. The Direct Digital volume control is clean and practical, and the unit is well regarded for low noise, resolution and a non-etched presentation. Check that the remote, display, inputs and volume control all behave properly, and confirm HDMI compatibility with your sources; otherwise, at GBP £204, this is exactly the sort of capable, under-appreciated NAD component enthusiasts should be pleased to find.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
NAD Electronics was founded in 1972 in London by a group of European audio importers frustrated with the hype surrounding Japanese hi-fi products. Led by visionary American executive Martin L. Borish and brilliant engineer Bjorn Erik Edvardsen, the company emerged from a quest to deliver high-performance audio at accessible prices. Their breakthrough came with the NAD 3020 integrated amplifier, the best-selling hi-fi amp in history, which embodied a philosophy of stripping away non-essentials to prioritize pure sound quality.
The brand focuses on core hi-fi categories, excelling in amplifiers—pioneering Class A/B, Class G, and hybrid digital designs—alongside integrated receivers, AV processors, turntables, CD and cassette players, and modern streamers. While not venturing into speakers, headphones, or cables, NAD emphasizes source components and amplification that integrate seamlessly into home theater and custom installation setups, always upholding principles of innovation, simplicity, performance, and value.
Today, as part of Canada's Lenbrook Group and sold in over 80 countries, NAD holds a commanding mid-tier position in the market, revered by audiophiles for affordable excellence rather than ultra-high-end excess. Its "Truth in Power" legacy earns cult status among knowledgeable buyers seeking reliable, award-winning gear that punches above its price, blending vintage heritage with contemporary streaming and hybrid tech.
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