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Angeboten wird „GSi 75“ von Audio Research als Gebrauchtgerät aus der Kategorie „Röhren-Vollverstärker“ bei audio-markt.de - dem Online-Marktplatz für High-End. Das Inserat mit der Nummer 6729696083 endet am 21.09.2026 um 15:16 Uhr.
This is a fair ask, leaning a touch firm rather than a bargain. A new GSi75 launched at about €13,000–€15,000, and recent used examples I found sit around €5,800–€7,700 for comparable listings and conversions, so €8,500 is above the typical used middle but not wildly out of line for a clean unit.
What makes it worth considering is the full ARC package: a 75W tube integrated with built-in DAC and phono stage, plus the usual Audio Research strengths of texture, scale, and control. If this one is genuinely well kept and comes with box, remote, and healthy tubes, the premium can make sense; just factor in future KT150 replacement cost and confirm the digital/phono sections are functioning properly.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Audio Research Corporation, founded in 1970 in Minneapolis, Minnesota, by William Z. Johnson, traces its roots to his pioneering work in custom audio electronics during the 1950s and his operation of a specialty retail store through the mid-1960s. After a brief stint selling his designs to a larger firm, Johnson regained independence to establish ARC with a singular mission: advancing the state-of-the-art in music reproduction. From modest beginnings in the back of his shop, the company evolved into one of America's oldest continuously operating high-end audio manufacturers, now housed in a state-of-the-art 48,000-square-foot facility in Maple Grove, Minnesota.
ARC specializes in performance-driven electronics, renowned for vacuum-tube amplifiers, preamplifiers, and electronic crossovers that emphasize sonic purity over flashy features or aesthetics. Drawing on circuit designs rooted in the 1950s, the brand integrates tubes into modern contexts, delivering what it calls "high definition" sound through genuine technological advances. While not venturing into speakers, turntables, DACs, headphones, or cables, ARC's focused lineup prioritizes amplifiers and preamps that set benchmarks for musical realism.
Positioned at the pinnacle of high-end audio, Audio Research is hailed as a true originator of the genre, commanding respect among audiophiles for its unwavering commitment to excellence and innovation. Enduring the 1970s tube revival against solid-state dominance, ARC thrives via elite specialist retailers worldwide, standing alongside peers like Conrad-Johnson as a vintage-inspired yet forward-thinking force in the niche boutique market.
See all Audio Research listings on RADAR.
