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For an older integrated like this, timing matters less than condition and proof it’s been kept healthy; the model’s age means a clean, original example has real appeal if it’s still electrically sound. At £94, it sits well below the £133 25th percentile and a long way under the £166 median, so this reads as a strong buy rather than just a fair price.
That’s especially true because the A-400 has a solid reputation for easy, open-sounding musicality and enough drive to make modest speakers come alive. The upside is value: if it powers up cleanly, has quiet controls, and hasn’t been butchered or heavily modified, there’s plenty of performance here for the money. I’d mainly want confirmation on service history, output stability, and that any essential extras are included, but at this price the balance is clearly in the buyer’s favor.
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.
