RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
The timing matters a bit because this is an older integrated amp from a generation before today’s digital-heavy receivers, but the asking price is well above the recent used market signal we have. With 8 comparable USD listings, the median is US$140 and the 75th percentile is US$173, so US$300 is clearly ambitious rather than fair value.
That said, the A-905X has a good reputation as a compact, musical-sounding integrated with solid build and enough refinement to make sense in a simple two-channel system. If it’s truly clean, fully functional, and includes the original remote or other accessories, that adds some upside—but at this price I’d only bite if you specifically want this model and the condition is excellent.
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.
