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Our Thoughts RADAR AI

Unknown condition makes this a slightly more cautious buy, but at £157 it still sits very close to the £149 median for 47 recent comparable GBP listings, so the asking price looks fair rather than stretched. It’s not a bargain at the £125 lower quartile, but it’s comfortably within normal market territory and well below the £256 upper quartile.

That makes it interesting for buyers who want a respected, no-nonsense solid-state headphone amp without paying premium money. Graham Slee units are generally valued for clean drive, quiet backgrounds, and a straightforward, musical presentation, so the real upside here is getting that reputation at an ordinary used price. I’d mainly want confirmation that it powers up cleanly and includes the right PSU and any original extras, since those matter more than cosmetic wear on this kind of amp.

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

About Graham Slee

Graham Slee Projects, founded in 1998 in the UK by engineer Graham Slee, traces its roots to his extensive career beginning in 1974. Starting in audiovisual engineering, he advanced through printed circuit design, electronics manufacturing, and broadcast audio, serving as a senior engineer for BBC studio contractors before freelancing in hi-fi. This deep expertise laid the foundation for a brand dedicated to precision audio electronics, all handmade in British workshops.

The company specializes in phono preamplifiers and headphone amplifiers, developed in tandem since 2000 to mutually enhance performance. Flagship phono stages like the Accession MM, Reflex M, Era Gold V, and Revelation excel at extracting superior detail from vinyl, while headphone amps such as the Solo Ultra Linear and Novo deliver refined, high-fidelity drive. Graham Slee also offers DACs, focusing on compact, synergistic components for vinyl enthusiasts and headphone users rather than speakers, turntables, or cables.

Positioned as a niche boutique in the high-end hi-fi market, Graham Slee earns acclaim among discerning audiophiles for its uncompromised sound quality and value. Free from mass production, its products prioritize musical transparency and build integrity, appealing to serious vinyl collectors and headphone aficionados who seek understated excellence over hype.

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