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This one’s a bit of a timing play: the M51 is an older but still respected DAC/preamp, so value depends more on condition and whether it’s been cared for than on being “current.” At £410, it lands right on the median of recent GBP comps, so this reads as a fair market price rather than a bargain or an overreach.
What keeps it interesting is the M51’s reputation for clean, incisive digital conversion and genuinely usable preamp duties, which made it a smart all-in-one choice in its day. If the unit is complete, tidy, and from a careful owner, it’s a solid buy for someone who wants a well-regarded piece without paying peak collector money. The main thing to verify is simple functionality and included remote/power lead, since the value here comes from getting a fully working, original setup.
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.
See all NAD listings on RADAR.
