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ARC SP9 for saleI am selling audio gear for my audiophile friend. He has health condition and leads to major hearing loss.This ARC SP9 is in excellent condition for its age and well looked after. This pre amp comes with 2 Amperex ECC88 "Trumpet" tubes.IMPORTANTThere is a mod in this machine. The ...
Against the current used market, A$1,250 is a strong bargain for this preamp: it sits well below the A$2,806 25th percentile and far under the A$5,864 median from your comparable AUD listings. For a classic Audio Research line-stage, that makes it look like one of those rare listings where the asking price is genuinely attractive rather than merely reasonable.
The SP9 is well regarded for a lively, spacious, very “tube” presentation with strong timing and musical flow, so it’s the kind of preamp that can still make a serious system feel more immediate and engaging. At this price, the main upside is simple: you’re buying into a respected Audio Research design at a level that leaves room for servicing if needed, while an excellent-condition example can be a very satisfying long-term keeper.
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.
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