Feliks Audio Euforia Evo

As another single-ended triode amplifying in Class A, EVO remains fully transparent and yet never overbearing in its presentation of detail.

Natural and wholesome even harmonic sound dominates – a direct result of EVO's single-ended Class A topology. The holy grail of all bias schemes isn't undertaken lightly, and rock-solid current sources ensure Feliks Audio's flagship OTL runs stably fully biased at all output levels.

This is a decidedly low-distortion affair in an inherently linear amplifier given high tube operating voltages and current. Transconductance increasing with bias current is optimal. And while tube imaging, emotiveness and liquidity is de facto, EVO always sounds natural and fully transparent.

Certainly, a massive audio bandwidth is guaranteed given its output transformer-less OTL construction. Literally nothing separates you from your music. Pairs of transparent CV-181 drivers and NOS 6N13S tubes power your headphones directly, without any chunk of transformer iron in the signal path. 

This Feliks champions frequency extension – the fast, deep bass and airy, open highs from the best OTL associations. Phase reproduction in the audible human hearing range is stellar, and dynamics crash especially potently bottom to top, rivalling even the best solid-state competition.

Boasting a new 4-pin XLR connection, EVO eschews the headphone cable adapter you might have used with its predecessors, powering your flagship cans even more directly in the spirit of maintaining total purity. This makes the case of EVO being the only amplifier you need – at least, till you aim for the extreme Envy...

Whether you go up or down, you'll be served browsing the rest of Feliks Audio's offerings here, or all our other DAC & amp options here.