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Offered is „303“ by Quad from the category „Transistor-Poweramp“ on audio-markt.de - the online market place for high-end. The advert with the number 1445141154 ends on 02.01.2027 at 18:47 o'clock.
A new Quad 303 costs far more than this, but for the original vintage model, €1,080 is clearly ambitious: it sits well above the €710 median and €895 75th-percentile asking price, making it poor value unless restoration or provenance is exceptional.
The 303 remains a lovely, compact 45-watt-per-channel Class-AB amplifier, prized for its clean, controlled presentation and classic pairing with Quad’s electrostatic speakers. A genuinely serviced, original-owner example with documented capacitor replacement, correct bias and reliable channel balance could justify a premium, but “good” condition alone does not. At this money, insist on service evidence and a proper listening test; otherwise, waiting for one nearer €700–€850 would be wiser.
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.
![Quad 303 power amplifier [re capped] , Quad 33 PreAmp , Quad 3 Tuner](https://i.ebayimg.com/images/g/sZAAAeSw~iRq6yTL/s-l225.jpg)
