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Offered is „Simply 845 Walnuss“ by Unison Research as new device from the category „Tube-Fullamp“ on audio-markt.de - the online market place for high-end. The advert with the number 4227582174 ends on 23.12.2026 at 06:16 o'clock.
The obvious alternative at this price is another high-end tube integrated, and €6,000 sits right on the used-market median for this model, with the 25th to 75th percentile spread only running from €5,942 to €6,713. That makes this listing fair rather than a steal, but still solid value if the unit is clean and fully healthy.
This is a respected 23W single-ended 845 design with the kind of texture, scale, and natural flow that keeps tube enthusiasts interested long after the novelty wears off, and new pricing around €8,899 makes €6,000 look sensible for a good example. The real buyer win here is if the amp has been well cared for, has healthy output tubes, and includes the original packaging or accessories; those details matter more than squeezing a tiny discount at this level.
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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