RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
US$425 is a fair-to-ambitious ask for a Sansui AU-5900, sitting just above the typical used range of US$250–US$300 for a stellar, serviced unit and well below the rare US$400+ extremes. While not a bargain, it’s not wildly overpriced if the amplifier is in top cosmetic and working condition.
The AU-5900 earns its reputation as a top mid-range 1970s Japanese amp, delivering 45 watts per channel into 8Ω with exceptionally low 0.1% distortion and a wide 5Hz–40kHz frequency response. Its solid-state design, 90dB signal-to-noise ratio, and 80 damping factor make it a reliable, sonically clean choice for traditional stereo setups. If this listing includes original accessories, has been recently serviced, or is original-owner grade, US$425 becomes a reasonable buy for a well-loved, period-correct performer.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Sansui, a pioneering Japanese audio brand, traces its origins to 1947 when it was founded in Tokyo by brothers Sakurai and Shunichi Yamamoto. Emerging from post-war Japan, the company quickly established itself as an innovator in consumer electronics, leveraging precision engineering to craft components that rivaled Western counterparts. Its heritage is rooted in the golden era of hi-fi, where Sansui's commitment to sonic purity helped define Japan's rise as a global audio powerhouse.
The brand excelled in a broad spectrum of hi-fi categories, with particular renown for its integrated amplifiers, receivers, and tuners that delivered warm, dynamic sound. Sansui also produced acclaimed speakers, turntables, cassette decks, and later digital converters, emphasizing robust build quality and innovative features like direct-coupled circuitry for low distortion. These products catered to audiophiles seeking balanced performance across analog and early digital domains.
Today, Sansui holds a cherished position in the vintage collector market, revered for its mid-to-high-end gear from the 1970s and 1980s—icons like the AU-series amps remain sought after for their musicality and reliability. While no longer a frontline manufacturer, its legacy endures among discerning buyers restoring classics or hunting timeless performers, blending nostalgia with enduring value.
See all Sansui listings on RADAR.
StereoNET
Excellent
Reverb
eBay US
eBay UK
eBay Australia
AU
Kleinanzeigen
Excellent
DE
