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The Onkyo M-508 is a revered Grand Integra unit known for its robust dual-mono power and pristine 1980s sound, but the US$2,400 asking price sits at the 75th percentile of recent comparable listings, making it ambitious rather than fair. While the median market value is US$2,160 and strong deals appear near US$1,800, this listing exceeds the typical range, suggesting the seller is targeting a premium without clear justification for the extra cost.
That higher price is understandable if the unit is in original-owner pristine condition with wood sides and full accessories, as the M-508 delivers exceptional 500W power and remains a top-tier choice for demanding speakers. However, given the price is above the median, buyers should verify the service history and confirm no missing components, since age-related issues like dry capacitors or switch wear could be material concerns at this level. If the listing is clean and fully serviced, it remains a worthwhile buy for those seeking vintage power, but the price demands extra scrutiny.
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.
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