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Seller's Description

This unit is in excellent condition as it has been in storage. Cosmetically it's in great condition and in good working order.

Our Thoughts RADAR AI

The Audio Research PH3 is a revered tube phono stage known for its warm, musical sound and robust MM/MC flexibility, making it a standout in the vintage analog world. At US$1,025, this asking price is slightly above the 75th percentile (US$991) of recent comparable USD listings, edging into the ambitious range rather than a clear bargain, though it remains within a reasonable market window given the model’s enduring appeal.

This unit is worthwhile if it’s in clean, original-owner condition with no tube issues, as the PH3’s tonal richness and low noise floor still complement modern high-end systems. The upside lies in its rarity among used listings and the fact that many PH3s have been modified for 220V, so a native 110V version (if confirmed) avoids costly rework. If the listing includes original tubes and a power cord, it becomes a solid buy for enthusiasts seeking authentic tube phono performance without breaking the bank.

Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.

About Audio Research

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.

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