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Unknown condition makes the price the main question, and at US$175 this sits just below the recent comparable 75th-percentile figure of US$177—essentially a fair, upper-market ask rather than a bargain. It would be more compelling around the US$124–US$154 range, unless the seller can demonstrate excellent cosmetic and operational condition.
The A-20-S is a sensible minimalist integrated: 30 watts per channel into 8 ohms, 50 watts into 4 ohms, a useful MM phono stage, proper binding posts, A/B speaker switching, remote volume, and a straightforward analog layout. It is well suited to efficient bookshelf or modest floorstanding speakers, with a clean, unfussy presentation and good everyday usability. At US$175, insist on a working remote, quiet controls, confirmed phono input, and no channel dropouts; otherwise, negotiate.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Pioneer traces its roots to 1937 in Tokyo, Japan, when founder Nozomu Matsumoto, inspired by the thrill of imported hi-fi speakers, developed the A-8 dynamic speaker and launched a radio and speaker repair shop. The business formalized as Fukuin Shokai Denki Seisakusho in 1938, evolving into Pioneer Corporation and embodying Matsumoto's philosophy of "Move the Heart and Touch the Soul" through audio innovation.
The brand excels across diverse hi-fi categories, pioneering Japan's first headphones in 1960 with the SE-1 and the world's first component-based stereo system in 1965 via the PSC-5A. Pioneer's portfolio spans amplifiers, speakers, turntables, and DACs, alongside landmark car audio advancements like the 1975 Supertuner-equipped stereo and the 1986 in-car CD player, blending home and automotive excellence.
Today, Pioneer holds a commanding mid-to-high-tier position in the market, revered for reliable, performance-driven gear that balances premium quality with accessibility. Its vintage components attract collectors, while current offerings appeal to discerning buyers seeking robust, innovative sound reproduction without boutique excess.
See all Pioneer listings on RADAR.
