Fezz Audio OVO – Stereo Vacuum Tube Headphone Amplifier

The Fezz Audio Ovo is a premium vacuum tube headphone amplifier designed to deliver an exceptionally natural, rich and engaging listening experience, while providing enough power and flexibility to drive even demanding headphones. At the heart of the Ovo is a pure Class A Single-Ended Triode (SET) output stage, a topology prized for its fluid presentation, harmonic richness and ability to convey the emotional character of music.

The Ovo combines this classic tube architecture with carefully selected components and high-quality Toroidy power and output transformers, giving it the foundation for an expansive, detailed and highly musical presentation. The result is a sound that is rich and mellow without sacrificing detail, allowing vocals, instruments and subtle textures to emerge with impressive clarity and presence.

One of the Ovo’s greatest strengths is its versatility. The amplifier offers three selectable headphone impedance ranges—Low, Mid and High—covering headphones from 16 to 600 ohms. This allows the amplifier to be properly matched to a wide variety of headphones, helping you get the best possible performance from each pair.

The Ovo also provides both RCA and XLR inputs, along with RCA and XLR outputs, making it more than simply a dedicated headphone amplifier. Its headphone connectivity includes 6.3mm, balanced XLR and 4.4mm Pentaconn outputs, providing compatibility with a broad range of modern and high-end headphones and cables.

With up to 1.5 watts of output power, the Ovo has the drive required for demanding headphones while retaining the intimacy and finesse that make single-ended triode amplification so appealing. Its wide 16Hz–120kHz frequency response further supports its ability to reproduce music with impressive openness and detail.

The Fezz Audio Ovo is equally distinctive visually. Its elegant Evolution Line chassis and exposed vacuum tubes give it the presence of a true high-end audio component, while optional accessories such as a remote control, Bluetooth module and protective tube cage allow the amplifier to be customized to suit your system and listening preferences.