Feliks Audio Echo Classic Headphone Amplifier

Warm, Musical Tube Sound Made Accessible

The Feliks Audio Echo Classic Headphone Amplifier is the quintessential entry-level tube amplifier that welcomes audiophiles into the world of vacuum tube-driven sound with no unnecessary frills.

Hand-crafted in Poland with meticulous attention to detail, the Echo Classic delivers smooth, warm, and engaging audio that brings out the best in your headphone collection, making regular listening sessions feel more natural and expressive.

Its design is intentionally simplified and focused on musicality, ensuring authenticity and richness in every performance.

Pure Analog Performance with OTL Tube Architecture

Built around a pair of quality driver tubes and power tubes in an output transformer-less (OTL) topology, the Echo Classic delivers 350 mW of output power with low distortion (0.4 % at 300 Ω), supporting headphones with impedances from 80 Ω to 600 Ω.

With a broad frequency response of 15 Hz–45 kHz (±3 dB) and a gain level of 20 dB, this amplifier produces detailed bass, lush mids, and sweet highs while maintaining a refined tube character without overpowering warmth. The straightforward 6.3 mm headphone jack makes connection easy for most high-impedance headphones.

Handcrafted Quality and Timeless Design

Echo Classic is not just about sound — it’s a beautifully crafted piece of audio equipment. Featuring solid wood side panels and a robust metal chassis, each amplifier is hand-built with premium components and quality craftsmanship.

Its aesthetic blends classic charm with enduring durability, making it a striking centerpiece on any audio desk. Whether you’re just beginning your journey into tube amplification or seeking an organic, musical listening experience, the Echo Classic stands as a compelling and accessible choice.