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At £140, this Pioneer A-400 sits just below the median of £151 from 683 recent GBP listings, making it a fair price rather than a bargain, though it respects the 25th percentile floor of £79. For context, typical used market data for this cult classic often ranges around £100–£120, so this asking is slightly ambitious but not unreasonable given the tested condition.
This amplifier is a well-loved cult classic, renowned for delivering far more performance than its original £240 price ever suggested, with stories of it bettering £1,000-plus pre-power combinations. It excels specifically with CD sources, offering a clean, reliable sound that has served nearly 30,000 units for decades. Since it is tested and listed cleanly, it represents a solid buying opportunity for enthusiasts seeking original UK-designed, Japan-built reliability without the risk of unknown condition.
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.
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