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I am selling this item for a friend who has used this device for casual home listening for the past few decades. The date of production and date of purchase are unknown, but it is still in great condition and has recently been tested. Local pickup is strongly preferred, but if you’re making a good offer we can discuss shipping. DISCLAIMER: Anything else you see in the photos besides the item mentioned in the name of the listing is NOT included in the listing, but may also be for sale, so if you’re interested please check out my shop. If you decide to buy it for our asking price or if you reach out with an offer that we accept, I will put you in touch with my friend so that you can arrange a pickup in Glendale, CA which I’ll do my best to be present for. $110 OBO
This US$110 asking price is ambitious compared to the typical used market for the Denon DRM-400, which generally sits between US$90 and US$95 for units in good working condition. Recent listings show a US$92.89 price point plus shipping on Reverb and a US$99.99 benchmark for a near-mint, bench-tested unit with original packaging and manual, placing this offer roughly 10–20% above the median.
The DRM-400 remains a worthwhile buy for its Japanese manufacturing, dual-cap transport stability, and clean 1989–1991 Denon sound, but at US$110 the buyer should confirm it includes the manual and original box, which add value at lower prices. If those accessories are present and the deck is fully cleaned and tested, it’s a fair ask for a solid, well-regarded cassette deck; if missing, the price leans too high for what’s on offer.
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.
