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£802 is above the median but still only modestly so against your recent GBP comp set, so I’d call it slightly ambitious, not out of line. With a median at £774 and the 75th percentile at £789, this sits a bit beyond the usual asking band, but not far enough to make it a red-flag price.
What makes it appealing is the underlying Purifi 1ET400A platform: these amps are widely respected for very low distortion, excellent control, and a clean, powerful presentation that tends to sound effortless rather than flashy. If the listing is genuinely clean, comes from a careful owner, and includes the right PSU/cabling or casework, the extra few quid can still be justified for a well-kept example; I’d mainly want confirmation of condition and completeness before paying over the pack.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Purifi Audio emerged from Denmark around 2017 as a research-driven venture founded by audio engineering luminaries Lars Risbo and Bruno Putzeys. Both pioneers in class D amplification—Risbo with his PCM-PWM innovations via Toccata Technology and Putzeys with his storied career—teamed up to push boundaries in distortion reduction. Rooted in the science-centric ethos of the Technical University of Denmark, the company formalized through subsidiaries like Purifi Transducer Technology, emphasizing fundamental R&D over consumer products.
The brand specializes in high-performance components rather than complete systems, focusing on advanced loudspeaker drivers and class D amplifier modules. Their Eigentakt control scheme powers modules like the 400W unit, achieving THD and IMD below -115dB across frequencies. These transducer and amp technologies target measurable excellence in linearity and efficiency, serving OEMs and DIY enthusiasts who integrate them into custom high-end builds.
Purifi occupies a niche boutique position in the high-end hi-fi market, revered by knowledgeable buyers for its uncompromising engineering and objective performance metrics. As a young Danish startup, it earns acclaim for revolutionizing driver and amplification tech, though it remains under the radar outside specialist circles, prioritizing innovation over mass-market presence.
See all Purifi Audio listings on RADAR.
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