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The timing matters only in that the 640A is an older Azur-generation integrated amplifier, not a current model, but that age is already reflected in the market. At £110, this is a fair-to-good buy: it sits just above the £105 median, comfortably within the £86–£125 middle market, and is nowhere near an ambitious price.
It remains worthwhile because the 640A offers a capable, clean-sounding integrated design with useful analogue connectivity and enough drive for many conventional speakers. At this money, it makes a sensible system-building choice, particularly if it is clean, fully functional, and includes the remote. Since the condition is unknown, check for scratchy controls, channel imbalance, relay or input faults, and excessive transformer hum before committing; otherwise, £110 is reasonable rather than a bargain.
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.
