VSystem

Tube Headphone Amplifier with OTL Design

Your Introduction to Tube Sound

Feliks Audio Echo MKII is the perfect choice for audiophiles who want to experience authentic tube sound with exceptional warmth and detail. Built with OTL (Output Transformerless) architecture, this amplifier delivers natural transparency and dynamic reproduction of any musical composition.

It is designed specifically for high-impedance dynamic headphones, thus delivering rich, rich bass, expressive vocals and balanced high frequencies that make every listening experience extremely enjoyable and captivating.

Design and aesthetics

The Feliks Audio Echo MKII not only sounds amazing, it looks great too. With an aluminum body and wood accents, this amplifier complements any audiophile system in both sound and appearance.

A perfect choice for audiophiles

Feliks Audio Echo MKII offers the best performance with dynamic headphones and high-impedance models. Some of the best combinations include:

• Sennheiser HD650 and HD800S: Adds extra warmth, smoothness, and depth
• Audeze LCD-XC: Provides softness in the mids and improved stage presentation
• ZMF Auteur Vérité: Emphasizes detail and dynamics
• HiFiMAN Susvara: May require an additional amplifier for full performance

Features

• OTL (Output Transformerless) design: Provides pure and natural tube sound, without compromising transparency
• High-impedance headphone support: Ideal for models such as the Sennheiser HD800S, Beyerdynamic T1 and ZMF Vérité
• Classic Analog Design: Solid construction with an aluminum chassis and elegant wood accents that give a luxurious look
• Rich midrange: Warm vocals, detailed mids and smooth highs
• Deep bass: Moderately boosted low range that gives musical density without distortion
• Power 350mW: Sufficient for most dynamic headphones, but not recommended for low-impedance planar models like the HiFiMAN Susvara
• Hand-assembled high-quality tubes: Designed with reliable tubes for long life and excellent tonal characteristics
• Ultra-low noise: Optimized circuits for a clean and noiseless background, ideal for delicate and acoustic recordings

What's in the Box?

• Feliks Audio Echo MK2 Amplifier
• AC Power Cord
• User Manual

Technical Information

• Impedance: 100 k ohm
• Frequency response: 15 Hz – 45 Khz +/- 3 dB
• Power output: 350mW
• Amplification level: 20dB
• THD: 0.4 % (300 ohm, 20 mW)
• Optimal headphones impedance: 80 – 600 ohm
• Headphones output: Jack 6.3mm
• Weight: 3.5 kg
• Dimensions: 26.8 x 21.7 x 11.8 cm