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This is a buyer’s market for this category at the moment, and £131 sits a touch above the £115 median but still well within the normal used range. It’s not a steal, but it reads as a fair asking price rather than an ambitious one, especially for a clean example that doesn’t need immediate spending.
The A-400 is still respected for straightforward, lively 90s integrated-amp sound: punchy, open, and easy to live with if you want a solid no-nonsense vintage amp. At this price, the main upside is getting a dependable classic without paying collector money; just make sure the controls are quiet and the unit has been well cared for, since age-related service issues matter more than cosmetics here.
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.
