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The timing matters: this is a discontinued, older-generation flagship-style Unico rather than a current model, so condition and service history matter more than novelty. At A$6,111, it sits toward the upper end of the estimated A$4,500–A$6,500 excellent-condition used range—fair, but not a bargain unless it is exceptionally clean, complete, and recently serviced.
The appeal is substantial: this is a serious 60 kg hybrid integrated, combining twin ECC82 valves with a powerful MOSFET output stage and roughly 200 watts per channel. It is known for authoritative bass, smooth, dimensional midrange and enough current for demanding speakers, while retaining some valve warmth without sounding soft. Confirm the remote, valve condition, quiet operation and sensible transport arrangements; at this weight, collection or specialist freight is preferable. A clean original example with service documentation would justify the asking price.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Unison Research, an Italian hi-fi icon, traces its roots to 1987, when it was founded in Treviso by Giovanni Maria Sacchetti, a visionary electronics engineer and music enthusiast born in 1945. Sacchetti, who balanced a career in teaching with amplifier design, assembled a team of dedicated audiophiles driven by a singular passion: delivering profound musical pleasure through superior sound. From its inception, the company emphasized handmade craftsmanship entirely within Italy, evolving under subsequent leadership like Giovanni Nasta while honoring Sacchetti's legacy of innovation in tube-based audio.
The brand excels in valve amplifiers, its core strength, with legendary models like the Triode 20—the first integrated amp Sacchetti designed—and the Simply Two, which sold over 30,000 units and propelled global acclaim. Early offerings included the Glowy preamp and Ruler power amp, pioneering designs such as the first stereo amplifier using the 845 triode. Today, Unison Research offers a focused lineup of preamplifiers, power amps, integrated amplifiers, and select speakers in partnership with Opera Loudspeakers, prioritizing pure analog warmth over digital peripherals like DACs or headphones.
Positioned as a high-end boutique leader, Unison Research reigns as Italy's top tube amplifier producer and ranks among Europe's elite ten. Audiophiles worldwide revere its products for their emotional depth, artisanal quality, and timeless appeal, cementing a niche among discerning buyers seeking authentic, soul-stirring hi-fi that transcends mere technical specs.
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