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The Onkyo M-501 is a respected discrete-output Japanese power amp known for clean 150W per channel performance and tight damping, but the US$300 asking price here is ambitious. Based strictly on your database of 10 recent comparable USD listings, the median sits at US$200, with the 75th percentile at US$278; this listing exceeds that upper quartile by US$22, placing it well above the typical market range of US$185 to US$278.
This amp delivers what enthusiasts value: solid discrete output stages, low distortion (0.09% THD), and robust 10.5kg construction built in Japan. At US$300, it’s only worthwhile if the condition is truly pristine, original-owner, and includes the box or manual—otherwise, it’s a tough sell against US$199–US$220 options on Reverb and eBay. If those extras are present and the unit works flawlessly, it could still be a fair buy for a collector seeking provenance, but for pure performance, cheaper comps exist.
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.
