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At £542, this sits just above the £522 median and a little over the £532 75th percentile, so it’s a touch ambitious rather than a bargain. It’s not wildly out of line, but I’d want the condition, tube hours, and any extras to justify paying over the usual range.
The Echo Mk II is a well-liked OTL tube amp: spacious, lively, and especially good with 80–600 ohm headphones, where it tends to sound open and smooth rather than clinical. If the listing is clean and complete, it’s still a worthwhile buy for someone who wants that kind of musical, glowing presentation; at this price, though, I’d prefer original box, good tubes, and no service history gaps.
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.
