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Sansui AU-9500:The amplifier completed with the best circuit technologyDescriptionThe Sansui AU-9500, released in Japan in 1972 during the “Golden Era” of high-fidelity Japanese audio equipment, is a vintage integrated amplifier of exceptional quality. The AU-9500 offers a rated output of 75W + 75W (8 Ohms) The amp features a stable, direct-connected OCL pure complementary circuit, with total harmonic distortion (THD) of <0.1%. The AU-9500, by its exceptional quality and circuitry, is a critically acclaimed unit among vintage audiophiles. As well as a parallel push-pull circuit for clean high output. Power is supplied independently to the power stages of each channel. Finally, the power and pre-drive stages feature separated power supplies, while the pre-drive stage is run at a higher voltage, for a stable drive absent of load fluctuations. The AU-9500 has 2x phono inputs, With these features and even more innovations, the AU-9500 remains a superb amplifier. Everything about this amp spells quality, with its precise, thoughtful construction, solid aluminum knobs, and modern appearance.This Amplifier is in Good condition (please see photos), with some expected signs of age, including some scratches rust, stain, and scuffs. **Some of the plastic parts have cracks or chips due to deterioration. Our professional in-house technician has thoroughly tested and checked it, confirming its flawless working quality.Additional InformationTechnical Specifications-Serial : 213070144-Country of Manufacture : Japan-Power Supply : 100V 50/60Hz 205WAccessories-N/AVoltagePlease check the power requirements for this device and the specifications of your power supply. If you need to use this item in a 220-240 V environment, you'll need a transformer. We sell high quality Japanese compact transformers (Nissyo), which will allow you to use this item safely and with good performance in your country.IMPORT TAX・Import duties, taxes, and other charges which are not included in the item price or shipping charges are the buyer’s responsibility.・Please check with your country’s customs office to determine what these additional costs will be prior to bidding or buying.・Except in the case of faulty or damaged items, refunds do not include any return shipping or shipping charges. Your return shipping charge will be deducted from your refund if you receive any.
The used Sansui AU-9500 integrated amp market sits around a median of USD1,000 based on recent comparable listings, with the 25th percentile at USD875 and 75th at USD1,393. At USD750 with unknown condition, this looks like a potential bargain if it's in decent shape—well under the low end—but the lack of details makes it a calculated risk rather than a slam dunk.
Before biting, power it up and listen for crackling, distortion, or channel imbalance, as these 1970s beasts often suffer from dried capacitors or dirty pots that kill the warm Sansui sound. Verify the original power cord and any service history too; missing those or signs of rust point to deferred maintenance.
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.
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