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Offered is „Triode 25 Black Edition“ 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 3240272691 ends on 08.11.2026 at 06:04 o'clock.
This is a buyer’s market for Italian tube integrateds right now, and the €3,000 asking price for the used Unison Research TRIODE 25 is fair—just slightly above the €2,885 median from three recent EUR comps, but well within the €2,455–€2,940 percentile band. It’s not a bargain, but it’s not ambitious either; you’re paying a modest premium for good condition, which is reasonable in today’s used market.
The TRIODE 25 is well-regarded for its lush, tube-like sound that balances warmth with clarity, delivering 25W in triode mode (45W in pentode) with KT77 power tubes and Gold Lion preamps. It’s a compact, 20kg integrated that excels with dynamic rock and vocal-centric material, and its original-owner condition in EUR suggests minimal wear. With no known failure points specific to this model and a price at fair value, this is a solid buying opportunity for enthusiasts seeking authentic tube tone without overspending.
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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