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At US$2,400, this sits right at the top of the recent market band: above the US$2,100 median and matching the US$2,400 75th percentile, so it reads as a fair-but-full ask rather than a bargain. It’s not overpriced by the numbers, but it’s also not a standout deal unless the condition is unusually clean or it comes with the right extras.
The M-508 is a respected vintage Onkyo piece with serious heft, strong output, and the kind of Grand Integra build that still draws buyers who like muscular, authoritative sound. If this one is tidy and original, the upside is in owning a sought-after classic that’s still well supported by enthusiast demand; at this price, I’d want confirmation of working order, service history, and any included accessories before moving fast.
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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