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Pioneer A-400 Stereo Amplifier 520W Made In Japan - Free Postage
Pioneer A-400 10 views

Pioneer A-400 Stereo Amplifier 520W Made In Japan - Free Postage

USD$188 GBP$140
Location
GB
Seller
matthekitchin_0
Source
eBay UK
Posted
18 Jul 2026
Last seen
5h ago

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Our Thoughts RADAR AI

Condition is unknown, so the price has to do the heavy lifting — at £140 this sits below the £152 25th percentile and well under the £173 median, which makes it a strong deal rather than just fair value. For a clean working example, that’s the kind of asking price that leaves room for service and still keeps the total sensible.

This model is well regarded for its lively, transparent sound and muscular, no-nonsense presentation, so it remains a very appealing vintage integrated if you want straightforward musicality rather than modern frills. The upside here is obvious if it’s original, quiet, and unmolested: these can be excellent daily-use amps, and at this price I’d mainly be checking operation, channel balance, switches, pots, and whether any service history is available.

Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.

About Pioneer

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.

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