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Unknown condition is the only real drawback here, but at £157 this is a strong deal against the supplied market: it sits below the £160 median and close to the £140 lower quartile, rather than merely being fair value. If it is clean and fully functional, the price looks especially attractive for a genuine A-400 rather than the later A-400X.
The A-400 remains well regarded for its punchy, rhythmic presentation, clarity and ability to drive sensible standmount speakers without fuss. It is a straightforward, no-frills integrated that can make a very musical system. Before buying, confirm that the volume control operates quietly, all inputs and speaker outputs work, and there is no channel imbalance at low level; these are meaningful checks on a roughly 30-year-old amplifier. The phono stage is serviceable rather than special, but that is a minor issue at this price.
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.
