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At £11,086, this custom 25th Anniversary Envy is priced well above the typical used median of £516 and even the 75th percentile of £3,095 from recent GBP listings, making it an ambitious ask unless you’re specifically hunting for this ultra-limited, one-of-25 unit. Standard new Envy Performance Editions start around £6,000–£7,500 (€6,999–€8,599), so while this isn’t a bargain on paper, the exclusivity and factory upgrades justify a premium for the right collector.
What makes this worthwhile is its rare status as a 25th AE with ebony wood, Felix-branded ER 300B tubes, Amorphis-core output transformers, and a custom toroidal power transformer—upgrades that push it beyond the standard flagship. If it’s in original-owner condition with full specs intact, it’s a statement piece for Susvara or similarly demanding headphones, offering 8W of pure Class A SET power with exceptional noise performance. For enthusiasts who value rarity and top-tier refinement, this is a compelling, if pricey, opportunity.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Feliks Audio traces its roots to Poland, where electronics engineer and audio enthusiast Henryk Feliks began designing amplifiers over 40 years ago as a passionate hobby. Around 20 years ago, he turned this pursuit commercial, selling custom-made units initially within Poland. In 2014, the second generation—sons Łukasz, Piotr, and Michał—joined the family business, elevating it into a global operation based in Lubliniec. Today, this tight-knit team of about 10 crafts products with over 25 years of accumulated expertise in tube amplification.
The brand specializes exclusively in handcrafted tube amplifiers, with a sharp focus on headphone applications. Their lineup includes output transformerless (OTL) designs like the accessible Echo, high-end models such as the Envy Susvara Edition, and even esoteric electrostatic amplifiers like the Bliss, which supports both modern and vintage headphones. Every piece is in-house engineered, tuned, and assembled, blending natural materials and unique topologies for purist performance, often doubling as preamps for active speakers.
Feliks Audio occupies a niche boutique position in the high-end hi-fi market, revered by headphone aficionados for its emotional, rewarding sonics that prioritize musicality over sterile precision. Distributed in over 20 countries through select channels, their four-figure pricing reflects premium, small-batch quality rather than mass-market volume, appealing to discerning buyers who value tradition-meets-innovation in tube-driven headphone amplification.
See all Feliks-Audio listings on RADAR.
