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Offered is „Simply 845“ by Unison Research as exhibit from the category „Tube-Fullamp“ on audio-markt.de - the online market place for high-end. The advert with the number 5764781520 ends on 25.10.2026 at 06:11 o'clock.
€6,789 is ambitious, sitting above the €6,340 75th percentile for recent EU used listings, so it is not a bargain at this level. It’s still not absurdly out of line for a desirable single-ended 845 integrated, but you are paying toward the top of the current used-market band rather than landing a value buy.
That premium only makes sense if the unit is exceptionally clean, freshly serviced, and ideally includes strong supporting details like original packaging or documented tube history. This is a well-regarded 23W Class A design that wins buyers over with tone, scale, and that big, effortless triode presentation, especially with efficient speakers. At €6,789, I’d want a very reassuring condition story before moving; otherwise the safer play is to wait for a lower ask closer to the median.
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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