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Condition unknown, but £100 looks fair to slightly good for this amp if it’s fully working and cosmetically tidy. Recent used examples cluster around about £60-£120, with cleaner or serviced units often asking a bit more, so this sits near the middle rather than being a bargain or a stretch.
The A-9511 is well liked because it’s a solid, no-nonsense integrated with proper drive, a clean, punchy presentation, and enough current to make sensible speakers sound composed. It’s the sort of Onkyo that rewards a straightforward setup and gives plenty of musical value for the money; at £100, a complete, healthy example is a sensible buy. If possible, confirm smooth pot action, quiet inputs, and stable relay operation, since age-related service items matter more than the model itself here.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Onkyo traces its roots to postwar Japan, founded in 1946 in Osaka by Takeshi Goda, an engineer at Matsushita Electric who envisioned high-quality Japanese loudspeakers. Initially established as Osaka Denki Onkyo K.K., the company began production in 1948 with the acclaimed ED-100 speaker featuring a 25 cm driver, quickly building a reputation through LP concerts and innovative designs that resonated with audiophiles.
The brand excels in premium home audio, renowned for AV receivers, hi-fi amplifiers, and surround sound speakers that deliver exceptional clarity and power. Its portfolio spans turntables, DACs, headphones, and cables, bolstered by acquisitions like Pioneer's home electronics division in 2015, enabling cutting-edge integrations such as internet radio and high-resolution streaming.
Onkyo holds a solid mid-tier position in the hi-fi market, prized by discerning buyers for reliable performance and value rather than ultra-high-end exotica. Despite bankruptcy challenges in the late 2010s, its revival under new ownership preserves a legacy of technological innovation and pure sound enjoyment, appealing to both vintage enthusiasts and modern home cinema setups.
See all Onkyo listings on RADAR.
