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HiUp for sale is the following.S6 Valve AmplifierPurchased November 2023Original invoice included All original packaging includedSelling to hopefully upgrade to the S6 Black Edition.Can ship Australia wide is sold.Any questions please ask.
Compared with the usual used integrateds around A$4,435, this one at A$3,250 looks like a strong deal, sitting well below the A$4,061 25th percentile. For a like-new example, that’s genuinely attractive rather than merely “okay,” especially if you were already budgeting for a serious mid/high-end integrated and don’t need to stretch to a newer brand-new alternative.
The S6 is well regarded for its rich, confident, very listenable presentation with enough current delivery to make real speakers sing, which is why it’s still sought after on the used market. A clean, like-new unit at this price is the sort of listing I’d move on quickly if it includes the original remote and box; beyond that, this is more about verifying cosmetics and proper operation than worrying about a known weak price point.
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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