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Condition: Excellent (Fully Serviced & Restored)Brand: Sansui Model: AU-317 II Type: Vintage Integrated Amplifier (1983)Voltage: 220/240V (EU Ready) Description:For sale is a beautifully restored Sansui AU-317 II integrated amplifier (1983), fully serviced with a complete recap and careful calibration.The AU-317 II is one of Sansui’s most respected classic integrated amplifiers, known for its warm, musical sound, excellent phono stage, and outstanding Japanese build quality.This unit has been restored to provide reliable long-term performance and excellent sound quality.Restoration & Service PerformedThis amplifier has undergone a full professional service, including:Complete replacement of all electrolytic capacitors throughout the unitAudio path upgrades using high-quality WIMA / Illinois film capacitorsNew power supply / filter capacitors (Nichicon / United Chemi-Con grade parts)New thermal paste applied under the original output transistors for improved heat transfer and long-term reliabilitySpeaker protection relay replaced for reliability and safe operationAll boards and wiring connections re-soldered to eliminate aging/cracked joints and ensure long-term stabilityFull internal inspection, cleaning, and testing✅ All restoration work was completed by a reputable vintage audio service center in Zagreb, Croatia, at the end of 2025.Vintage amplifiers often develop weak solder joints over time, so this complete resoldering greatly improves reliability and performance.Bias & DC Offset AdjustmentAfter restoration, the amplifier was fully calibrated:✔ Bias adjusted according to the official Sansui service manual ✔ DC offset set correctly for optimal performance ✔ Final listening tests performed by ear to confirm excellent soundImportant NotesTransistors (PNP/NPN) were not replaced, as the originals tested good and did not require changingRestoration kit and spare parts shown in photos are for documentation only and are not included in the saleConditionExcellent cosmetic condition for its ageClean front panel, knobs, and rear connectorsFully functional and ready to enjoy immediatelyPlease see the detailed photos of the exterior and internal restoration work.Perfect ForVintage Hi-Fi collectorsAudiophile stereo systemsVinyl/phono listening setupsAnyone wanting a restored Sansui classic without original aging capacitorsTrades / Trade-In Options I am open to trade or part-exchange for the following: • KLH model 3 speakers • Wharfedale Linton Heritage speakers • Audiophile TurntableI can add cash on top, depending on condition and version. Please message me with details and photos if you’re interested in a trade.ShippingThis amplifier will be packed extremely carefully with proper protection due to its weight and vintage nature.Shipping available across the EU. Local pickup may also be possible.Feel free to message with any questions.
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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.
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