RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
What should you be asking first: is £178 a sensible ask for a 640A, or are you paying too much for a solid older amp? Against your own market data, it’s above the 75th percentile of £119, so this reads as ambitious rather than fair; I’d want it closer to £104 median, or at least much nearer the top of the usual band, before calling it a clean buy.
That said, the 640A is well-liked for a reason: it’s a straightforward, musical integrated amp with enough drive and control to make sensible bookshelf or modest floorstander setups sound organised and alive. If it’s genuinely tidy, original, and fully working, the upside is in getting a respected Cambridge piece that’s easy to live with; just check for scratchy pots, relay issues, and any channel imbalance, because at £178 those details matter more than they would at a median-priced listing.
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.
