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Offered is „M5550“ by Onkyo as second-hand device from the category „Transistor-Poweramp“ on audio-markt.de - the online market place for high-end. The advert with the number 8708529802 ends on 29.11.2026 at 16:07 o'clock.
At €499, this sits well below the recent comparable market for the model: under the €672 25th percentile and far under the €846 median, so it reads as a strong deal rather than merely fair. It is not a suspiciously low number for this amp; it’s the kind of pricing that should move quickly if the unit is clean and working properly.
The M-5550 is a respected late-’80s/early-’90s Onkyo Integra power amp, known for grip, headroom, and a polished, neutral presentation that still makes sense in a serious vintage system. At this price, the upside is solid if it’s cosmetically honest and hasn’t been messed with; just make sure the usual basics are covered: stable channel balance, quiet operation, and no evidence of relay or capacitor issues.
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.
