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Timing matters here because this is an older late-70s/early-80s-era separate, so the real question is whether you want a classic power amp with proven character rather than a modern feature set. At US$130, it sits just under the US$133 25th percentile and below the US$145 median, so this reads as a small bargain rather than a speculative buy.
That makes it a sensible grab if it’s complete and working cleanly: the M-5130 is well-regarded for straightforward, muscular two-channel drive, honest build quality, and an easy match with vintage preamps or a simple modern source chain. The upside is in value and longevity if it has been cared for; still, with any amp of this age, a quick check of channel balance, relay behavior, noise, and heat is worthwhile before committing.
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.
