FiiO WARMER R2R, digital to analog converter

INFORMACIJA

FiiO WARMER R2R is a high-end R2R type digital-to-analog converter with a tube analog stage, designed for music lovers looking for a natural, warm and "live" sound. This model combines classic tube character with modern, fully symmetrical R2R conversion, making it perfect for both modern Hi-Fi systems and classic amplifiers or active speakers.

DAC type: R2R (more natural, analog sound)
Lamps: 4 × JJ E88CC
Inputs: USB / Optical (TOSLINK) / Coaxial
Outputs: RCA (linear); XLR (balanced)
Sound modes: NOS (natural, analog sound); OS (up to 384 kHz, greater detail)
USB compatibility: UAC 1.0 / UAC 2.0 (computers, players, consoles)

DESCRIPTION

Fully balanced 24-bit R2R DAC, tube buffer with 4× JJ E88CC, USB/Optical/Coaxial inputs, RCA & XLR line outputs, NOS/OS modes up to 384 kHz, 46 W low-noise linear PSU, dual analog VU meters—the FiiO WARMER R2R Tube DAC/Amp brings vintage warmth with modern precision.

FiiO WARMER R2R - Fully Balanced Tube DAC/Amp for Pure, Vintage-Warm Hi-Fi

The FiiO WARMER R2R is a fully balanced R2R Tube DAC/Amp that blends state-of-the-art digital conversion with the unmistakable glow of tubes. At its core, the WARMER R2R uses FiiO's proprietary four-way, fully differential 24-bit R2R resistor-array DAC—192 high-precision thin-film resistors engineered for ultra-low drift and consistent linearity. This architecture gives the WARMER R2R its uniquely natural, analog-like presentation and a captivating, musical sound signature.

To enrich timbre and add organic harmonic texture, the WARMER R2R employs a tube buffer based on four JJ Electronic E88CC valves (Slovakia). The optimized buffer stage runs from a ±28 V supply and is tuned to deliver that sweet, warm tube flavor without sacrificing resolution or control.

Connectivity is comprehensive for real-world systems: USB, optical, and coaxial digital inputs let you hook up computers, consoles, streamers and players with ease, while RCA and balanced XLR line outputs integrate the WARMER R2R into amps, powered speakers and studio chains. A handy UAC 1.0/2.0 toggle ensures wide device compatibility (including consoles), and NOS/OS modes let you choose between bit-perfect non-oversampling playback or global oversampling up to 384 kHz for a cleaner, more detailed presentation.

Power is the foundation of performance, so FiiO equips the WARMER R2R with a 46 W low-noise linear power supply using a toroidal transformer—designed for low ripple, high efficiency and a stable magnetic field. The result is a darker background, excellent SNR and pristine dynamics. A pair of extra-large LED-backlit analog VU meters not only recalls classic Hi-Fi, but also provides at-a-glance level feedback as your music comes alive.

The chassis follows FiiO's minimalist vintage aesthetic with practical thermal design: the grille pattern accelerates heat dissipation, ensuring the WARMER R2R delivers reliable high-quality audio for years. Whether feeding a power amp, active monitors or a headphone stack, the FiiO WARMER R2R is the warm-sounding, fully balanced R2R Tube DAC/Amp that brings breathtaking musicality, flexibility and timeless style to any desktop Hi-Fi.

TECHNICAL DATA

DAC Architecture Proprietary fully balanced 24-bit R2R resistor-array (4-way differential; total 192 thin-film resistors)
Analog Stage Tube buffer with 4 × JJ Electronic E88CC tubes
Digital Inputs USB, Optical (TOSLINK), Coaxial
Outputs Balanced XLR line out, RCA line out (simultaneous output supported)
USB Modes UAC 1.0 / UAC 2.0 hardware switch for broad compatibility
Playback Modes NOS (non-oversampling) / OS (oversampling up to 384 kHz)
Power Supply 46 W low-noise, low-ripple linear supply with toroidal transformer
Meters Dual analog VU meters, LED backlit
Design Minimalist vintage chassis with grille pattern for enhanced heat dissipation
Use Cases Desktop Hi-Fi, powered speakers/amps, recording and studio chains