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A solid alternative to a new entry-level tube amp, and at US$749 this lands a touch above the US$699 median but still below the US$800 75th percentile, so it reads as fair rather than aggressive. It is not a steal, but it’s close enough to the center of the market that a clean unit can be worth grabbing.
The Echo MKII is well liked for its smooth, spacious OTL presentation, especially with higher-impedance headphones, and it has the kind of easygoing tube character that makes vocals and acoustic music shine. A well-kept example with the original tubes, box, and a quiet, balanced channel will make this a straightforward buy; at this price, the main thing to confirm is condition and included accessories, not to hunt for hidden trouble.
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.
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