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Compared with the obvious alternative of waiting for a cheaper used valve amp, this asking price is a touch above fair, but not wildly out of line. With recent GBP comparables at a median of £506, a 25th percentile of £488, and a 75th percentile of £527, £547 sits just over the upper quartile, so I’d call it slightly ambitious rather than a bargain.
What keeps it interesting is that this model is well liked for its open, dimensional sound and the easygoing drive tube amps bring to high-impedance headphones. If the unit is clean, well cared for, and complete with the right accessories, it can still be a sensible buy for someone who wants that valve presentation and is happy to pay a small premium. At this level, I’d mainly want reassurance on condition, service history, and whether anything essential is missing.
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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![Feliks Audio Espressivo MK II OTL Tube Amplifier [Mint]](https://i.ebayimg.com/images/g/s1AAAeSwp7RqQ7rq/s-l225.jpg)
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