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Purifi 1et400a Eval 1 Power Amplifier Purifi 1et400a power amp. Eval 1 kit.in Italian Modu hifi case using purifi case mods.Very clean, detailed sounding amp.Very well regarded. Lots of rave reviews online.Same model modules and PSU as seen on the ASR review. Price Drop $1500->$1400Shipping is $50 to eastern states.Happy to AuditionPrice is negotiable.Gepps Cross SA. no time wasters or scammers please. Condition: Good Payment Method: EFT, Cash on pickup Region/State: (SA) South Australia/Australia By ae86 0 Comments Secure Ad AUD $1,400 Date: April 5Apr 5
Condition unknown on this Purifi 1ET400A eval unit justifies caution at AUD$1,400, but it's a clear bargain against our recent comps—median used pricing sits at AUD$2,612, with the 25th percentile at AUD$1,996 and 75th at AUD$3,229. These monster monoblocks hold value like few amps do, thanks to their low-distortion wizardry, so anything under the low end screams opportunity if it's legit.
Buyers, verify the eval board's integrity first—probe for oscillation issues or Eigenuono tweaks gone wrong, common in early 1ET400A builds. Demand original PTT6.5 woofers if bundled, full schematics, and burn-in hours; missing those or signs of thermal stress could mean rework costs eating your savings. Test with a scope if possible.
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.
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