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Compared with the obvious alternative of a fresh budget integrated, £160 for this is a strong deal in the current used market: it sits below the £168 25th percentile and well under the £189 median, so it reads as bargain territory rather than merely fair. For a clean example, that’s enough margin to make it especially interesting versus newer entry-level amps at the same money.
The 651A is well regarded for giving a solid, spacious, no-nonsense Cambridge sound with proper drive for real-world speakers, and it has enough quality to be a meaningful step up from many starter amplifiers. At this price, the main upside is simple value: if it powers up cleanly and the controls are quiet, this looks like a very sensible buy rather than a project.
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.
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