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Unknown condition makes the price harder to judge, but £100 is a fair-to-good ask: it sits just below the £103 median and comfortably above the £84 lower quartile, so it is not a bargain, though hardly ambitious. If it is clean, fully working, and includes the remote, the price looks sensible; a tested example with tidy cosmetics would be worth considering.
The 640A remains a capable, musical integrated with a healthy 65 watts per channel, low noise, broad connectivity, and a pleasingly warm, clear presentation. It is a particularly good match for reasonably sensitive 4–8-ohm speakers rather than difficult loads. Before buying, confirm both channels are clean, the input selector does not cause dropouts, and the protection circuit is not triggering unexpectedly; at this age, those checks matter more than chasing a small discount.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Cambridge Audio emerged from the innovative spirit of 1960s Britain, founded in Cambridge, United Kingdom, by a group of young engineers who spun off from Cambridge Consulting Group. Established in 1968, the brand launched with the groundbreaking P40 integrated amplifier—the first to employ a toroidal transformer, setting a new standard for dynamic power delivery in hi-fi design that endures in high-end gear today. This heritage of British engineering excellence propelled decades of award-winning products, navigating ownership changes including a revival under entrepreneur Vince Adams and acquisition in 1994 by Julian Richer and James Johnson-Flint of Richer Sounds.
The brand excels across core hi-fi categories, renowned for integrated amplifiers like the iconic A1 and P-series, alongside streaming DACs, network players, turntables, and all-in-one systems that prioritize pure analogue warmth and digital precision. Speakers, headphones, and cables round out a cohesive ecosystem, emphasizing accessible high performance without excess frills.
Positioned firmly in the mid-tier market, Cambridge Audio delivers premium British sound—detailed, rhythmic, and uncolored—at prices that democratize quality for discerning buyers. Free from corporate bloat, it holds a reputation for reliability and value, appealing to enthusiasts seeking sophisticated hi-fi that punches above its weight rather than chasing ultra-high-end esoterica.
See all Cambridge Audio listings on RADAR.
