Expired
RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
Compared with the obvious alternative of paying near the £1,178 median for a typical used example, £214 looks like a bargain here, and it is even well below the £426 25th percentile anchor. For a Quad 33/303, that is the sort of gap that makes this a genuine buy opportunity rather than a merely decent deal.
That combination is appealing because these classics are valued for a smooth, musical presentation and strong partnering with period or efficient speakers, so there is real upside if the unit is complete and functioning properly. At this price, the key checks are basic but important: powers up cleanly, no noisy pots or switches, no obvious channel imbalance, and ideally confirmation of any service history, since age-related wear is the main risk on vintage Quad gear.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Quad, the venerable British hi-fi brand, traces its origins to 1936 in London, when engineer Peter J. Walker founded S.P. Fidelity Sound Systems, soon renamed the Acoustical Manufacturing Company. Relocating to Huntingdon in 1941 after wartime bombing, the firm shifted from public address gear to domestic audio amid post-war demand for superior sound reproduction. Walker's pioneering ethos—prioritizing "the closest approach to the original sound"—defined Quad from its early QA12 amplifiers, adopted by the BBC, to the iconic Quad I of 1953.
The brand excels in amplifiers and electrostatic loudspeakers, revolutionizing both categories. The Quad II power amplifier of 1953 introduced cathode coupling for vanishingly low distortion, while the 1956 ESL 57 delivered the world's first full-range electrostatic speaker, employing a massless film diaphragm for unparalleled transparency and transient speed. Quad advanced into solid-state with the 1967 303 and transistor designs featuring innovative "Triples" output stages, later expanding to integrated amps like the 99 series, moving-coil speakers, and modern electrostatic models such as the ESL 988 and 989.
Today, under the International Audio Group since 1997, Quad holds a prestigious position in the high-end market, revered by audiophiles for its unyielding pursuit of accuracy over trends. Its heritage components command vintage collector status, yet contemporary offerings maintain a niche boutique appeal among discerning buyers seeking refined, distortion-free reproduction that honors Walker's legacy.
See all Quad listings on RADAR.
