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New, the Naim Nait 5si sold around £1,699, so £527 used is exceptionally keen. Against 19 comparable listings, it sits below the £539 25th percentile and well under the £592 median: a genuine bargain if the amplifier is sound.
The 5si remains a highly regarded, lively integrated with excellent timing, drive and rhythmic coherence, particularly with efficient, well-matched speakers. At this money it offers serious Naim performance for relatively little outlay. Because the listing gives no condition detail, confirm that the remote, Naim speaker plugs, mains lead and ideally the original box are present, and check both channels, inputs and volume operation before buying. Even allowing for cosmetic wear or missing packaging, £527 leaves useful headroom.
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.
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