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At £3,500, this sits essentially on top of the £3,491 median, so it reads as fair market pricing rather than a bargain or an ambitious ask. Against the recent spread, it’s just above the midpoint of the comparable range, comfortably within normal territory for a clean example.
That makes it a sensible buy if the unit is healthy, because a 555 PS DR is one of Naim’s most respected power supplies: it’s prized for grip, quieter background, and a clear lift in drive, timing, and scale when paired with the right Naim front end. The upside is strongest if it’s well cared for and complete, since these are typically bought by committed Naim users and tend to hold appeal in the used market.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Naim Audio, a cornerstone of British hi-fi excellence, traces its origins to 1973 when Julian Vereker, a self-taught engineer, racing driver, and music enthusiast, formally incorporated the company in Salisbury, Wiltshire. Vereker's journey began earlier, in 1969, experimenting with tape recording and sound-to-light boxes before designing his first power amplifier in 1971. Amid the British hi-fi industry's recession, he secured a pivotal contract with Capital Radio, blending entrepreneurial grit with a passion for authentic sound reproduction that challenged conventional wisdom.
The brand specializes in premium integrated amplifiers, power amplifiers, preamplifiers, digital streamers, DACs, and compact music systems, often featuring built-in amplification for streamlined setups. While not delving into speakers—beyond a historical foray—or headphones and turntables, Naim emphasizes modular, upgradable components that prioritize pace, rhythm, and timing (PRaT), a signature sonic philosophy rooted in the "source first" approach alongside contemporaries like Linn.
Naim holds a commanding position in the high-end market, revered by discerning audiophiles for its handmade, innovative systems that deliver emotional musical engagement over mere specifications. Now part of VerVent Audio Group following a 2011 merger with Focal, it exports to over 45 countries, sustaining a cult following for resilient, influential designs that transcend economic cycles.
See all Naim Audio listings on RADAR.
