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US$200 is a fair-to-good asking price for a PMA-680R, but not a steal; recent seen-used examples cluster roughly around US$80–US$200, with stronger dealer listings around the upper end and private-sale examples lower. At US$200, this sits near the top of the usual range, so I’d call it fair only if the unit is genuinely clean, tested, and ready to use.
What makes it worth a look is the classic Denon build: a solid 65W-per-channel integrated from the early ’90s, made in Japan, with enough current for sensible bookshelf or efficient floorstanding speakers. These older Denons are liked for a smooth, confident presentation and good day-to-day usability. If the listing includes the original remote, manual, or proof of service, that adds real value; otherwise, I’d want confirmation that all inputs, switches, and channel balance are quiet and working cleanly.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Denon traces its origins to 1910, when American entrepreneur Frederick Whitney Horn founded Japan's first audio equipment company, Nipponophone, initially focused on gramophones and records. The Denon brand emerged in 1939 from the merger of Japan Denki Onkyo—combining "den" for electricity and "on" for sound—with other entities, marking a shift toward professional audio development. This heritage includes pioneering Japan's first professional disc recorder in 1945, used to capture Emperor Hirohito's voice, and launching the nation's first long-playing records in 1951.
The brand excels across a broad spectrum of hi-fi categories, from amplifiers, turntables, and tuners to loudspeakers, cassette decks, and phono cartridges. Denon's innovations extend to digital frontiers, such as the world's first practical PCM recorder in the early 1970s, the inaugural CD player in 1981, and early home theater systems with Dolby Digital in 1995. Today, its lineup encompasses AV receivers, headphones, wireless streaming solutions like HEOS, and high-channel processors, blending professional-grade components with consumer accessibility.
Denon holds a commanding position as a mid-to-high-end mainstay in the hi-fi market, revered for its blend of technological firsts, robust build quality, and balanced sound signatures that appeal to discerning enthusiasts. No longer a vintage collector's niche, it competes confidently against premium rivals, backed by over a century of audio leadership and strategic partnerships like its merger with Marantz.
See all Denon listings on RADAR.
