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At GBP 74, this is a much better proposition than spending the same money on a generic USB interface or cable: it is a genuine bargain against the comparable Unison Research market. The listing sits dramatically below the GBP 822 25th-percentile figure, versus a GBP 1,208 median and GBP 1,556 75th percentile. Even allowing for the sparse “unknown” condition description, the price is low enough to merit serious attention.
The attraction is compatibility and implementation: this is the Yggdrasil Original version, intended to add USB input to the relevant Unison Research digital hardware while preserving a purpose-built, integrated solution rather than relying on an external converter. At this money, rarity and correct fit matter more than cosmetic perfection. Confirm that your unit specifically accepts this card, that it is the original-Yggdrasil version, and that mounting hardware or documentation is included; if those checks pass, GBP 74 is an exceptional buy.
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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