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The excellent amplifier with some marks of wear over the years.Have been professionally serviced, tested, cleaned, and replaced components only that were out of spec. All parts are still original.You will need a step-down transformer to run it in the UK or Europe. This is not included in the purchase, but I can guide you in purchasing it or supply it for an extra fee. Also, it can be converted for 240V internally for about 150-170£ extra fee (depending on the amp's power) if you request it.Feel free to contact me if you have any questions or discuss the price, or have any concerns about which amplifier you choose from those I have in my shop.I provide 5-star friendly customer service with after-sales support.Disclaimer:Although I take every precaution in managing my hi-fi and hi-end products, there is a possibility that small scratches may occur during display and storage. I try to check and describe them as much as possible, but I cannot guarantee that every single part is a genuine product.Additionally, what is depicted in the image is all that is included in the product. Please be sure to check the image, as the current state of the accessories and exterior condition will take precedence. I try to describe the condition of the product, such as scratches, sunburn, and dirt, as accurately as possible, but I may overlook some details. It is not realistic to perfectly describe all of the product conditions.Therefore, please ensure that you check the product's condition in an enlarged image. Scratches, sunburn, dirt, etc., that can be seen in an enlarged image are not a reason for return.In addition, I do not accept returns due to minor scratches, sunburn, dirt, etc., that are difficult to see even in an enlarged image. What is in the image is all that is in the product. Scratches, dirt, defective screws, peeling of glue, etc. on the inside and bottom that are not photographed. Deterioration due to aging. These parts that do not affect the function of the audio equipment are not covered by the warranty.
The listing price of US$1,595 is ambitiously high compared to the typical used market, sitting far above the 75th percentile of US$378 and the median of US$174 for 510 recent Denon integrated amplifier listings. Even accounting for this specific PMA-S10III model’s vintage high-end status, the asking price exceeds nearly all comparable Denon units, making it a risky entry unless the condition is pristine and original-owner provenance is confirmed.
This amplifier is well-regarded for its Japanese-made build quality, delivering 100W per channel with exceptionally low distortion (THD 0.07%), a hallmark of Denon’s late-1990s high-end engineering. Its rarity on the global market and original 100V design add niche upside for collectors, but only if the unit includes original accessories and shows no signs of capacitor aging or scratch damage—caveats that matter significantly at this price point.
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.
