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Quad 306 High-End Stereoendstufe *Unikat, Liebhaber, BBC, Studio*
Quad 306 15 views

Quad 306 High-End Stereoendstufe *Unikat, Liebhaber, BBC, Studio*

USD$618 ≈ EUR$550
Condition
Excellent
Location
Duisburg, DE
Source
Kleinanzeigen
Posted
5d ago
Last seen
1d ago

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Seller's Description

Zum Verkauf steht meine Quad 306 (auch Tausch mit Röhrenverstärker möglich)

• RECAPED:
Elkos neu in 2025

• UPGRADE:
Eingangsempfindlichkeit wurde von 0,375V auf 1,0V angehoben, das verbessert nicht nur den Regelbereich am Lautstärkepoti, auch harmoniert die Quad 306 nun perfekt mit modernen Quellgeräten, Streamern und Vorverstärkern ohne Pegelverlust.
• Leistung: 2 x 50 Watt RMS an 8 Ohm (extrem laststabil und dynamisch)
• Schaltung: Class-A-Präzision kombiniert mit der Effizienz einer hocheffizienten Leistungsstufe.
• Zustand: Technisch im absoluten Bestzustand.
Abholung mit Hörtest bevorzugt.

Sicherer Versand per DHL (versichert) gegen Aufpreis möglich.

Privatverkauf unter Ausschluss jeglicher Gewährleistung und Rücknahme.

Our Thoughts RADAR AI

New, the Quad 306 was a serious British power amplifier, but at €550 this example is clearly ambitious against the used market: recent comparable asking prices sit at a €363 median, with the upper quartile at €411. Even excellent condition does not usually justify paying roughly €140 above that 75th-percentile figure.

That said, the 306 remains a very appealing little amp: 50 watts per channel, a wide and open presentation, deep bass, and Quad’s current-dumping design. It is also unusually easy to partner with speakers, including moderate low-impedance loads. A clean, properly tested example is worth owning, but €550 only makes sense if it has documented professional servicing or worthwhile upgrades; otherwise, negotiate toward the €350–€400 region.

Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.

About Quad

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.

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