FiiO WARMER R2R – R2R DAC with Tube Buffer Stage

The FiiO WARMER R2R is a desktop DAC featuring a fully differential R2R architecture combined with a tube buffer stage, designed for listeners seeking a warmer, richer and more engaging sound signature.

Combining the precision of a 24-bit R2R DAC with the organic character of JJ Electronic E88CC vacuum tubes, the WARMER R2R delivers a more analogue and natural listening experience while preserving excellent detail and musicality.

Key Features

• Fully differential 24-bit proprietary R2R DAC;
• 192 high-precision thin-film resistors;
• 4 × JJ Electronic E88CC vacuum tubes;
• USB-C, Optical and Coaxial inputs;
• Balanced XLR and RCA line outputs;
• Simultaneous RCA and XLR outputs;
• NOS and OS modes;
• 46W toroidal linear power supply;
• Backlit mechanical VU meters;
• Premium retro-inspired design.

A Warm and Musical Listening Experience

As its name suggests, the WARMER R2R has been designed to provide a richer, smoother and more organic presentation. The combination of R2R conversion and tube buffering results in a sound characterised by excellent texture, body and natural tonal balance.

Fully Differential R2R DAC Design

At its core is a proprietary 24-bit R2R DAC built with 192 high-precision resistors. This architecture is highly regarded by audio enthusiasts for its natural presentation, harmonic richness and realistic timbre.

JJ Electronic E88CC Tube Buffer

The analogue stage incorporates four JJ Electronic E88CC vacuum tubes, providing additional warmth, smoothness and harmonic richness while maintaining excellent clarity and resolution.

Versatile Connectivity

The WARMER R2R includes USB-C, Optical and Coaxial inputs, making it easy to connect computers, streamers, CD transports, televisions and other digital sources.

Both RCA single-ended and balanced XLR outputs are available and can operate simultaneously for maximum system flexibility.

NOS and OS Modes

Choose between NOS (Non-Oversampling) mode for a more direct and purist presentation, or OS (Oversampling) mode for enhanced detail and refinement.

Linear Power Supply

A dedicated 46W toroidal linear transformer ensures stable and low-noise power delivery, contributing to improved sonic performance.

Classic Design with Mechanical VU Meters

The illuminated mechanical VU meters add a distinctive vintage touch while enhancing the overall listening experience.

Who Is It For?

The FiiO WARMER R2R is ideal for audiophiles seeking a more analogue, engaging and emotionally involving presentation from their digital music collection.