FiiO Warmer R2R | Desktop R2R DAC and Tube Buffer

Go All-in on Warmth With FiiO’s R2R DAC and Tube Amp, Delivering the Perfect Mix of Richness, Depth, and Old-School Charm Desktop R2R Tube Buffer and DAC Fully differential true 24bit R2R resistor arrays DAC Four JJ Electronic E88CC tubes Two-channel LED backlit true mechanical VU meters Type-C port allows for simultaneous charge and use via an adapter A Bolder Flavor The Warmer R2R draws inspiration from the legacy of the timeless Hong Kong band, the Wynners. As its name suggests, the Warmer R2R DAC aims to infuse music with an invitingly warm and beautiful tube sound. From the mesmerizing sway of the vintage warm-hued VU meters to the golden pairing of R2R DAC and vacuum tubes, the Warmer R2R lets you sense the warmth of the music during every listening session.  Extensive Inputs and Outputs USB/Optical/Coaxial Inputs Connect your phone, computer, digital music player, CD player, and more while easily switching between inputs with a knob. RCA and XLR Line Outputs Connect to speakers, amplifiers, DACs, and headphone amplifiers, with support for simultaneous output across both outputs. Fully Differential True 24bit R2R Resistors Arrays DAC The star of the show is FiiO's proprietary, four-way fully differential 24-bit R2R DAC. It is built with a total of 192 high-precision thin-film resistors (48 per channel) boasting 0.1% accuracy and an ultra-low drift of 30ppm. This gives the Warmer R2R its distinctly captivating sound signature.  JJ Electronic E88 Tubes Powering the tube buffer stage are four brand-new JJ Electronic E88CC valves imported from Slovakia. The tubes are powered by a 28V power supply and feature a long-lasting service life of 10,000 hours. The core circuitry of the classic tube buffer preamplifier has been optimized to impart a sweet, organic tube flavor, giving your music a delightful fullness.  Double the Fun: NOS/OS Modes NOS (non-oversampling): Decodes while preserving the original sample rate, providing the allure of pristine, original audio. OS (oversampling mode): Globally upsamples to a sampling rate of 384kHz, for better audio performance and a more detailed, clear sound. Radiating with Vibrancy The retro warm-hued backlit true mechanical VU meter is powered by a dedicated IC. When the music sounds, the meter moves in harmony, immersing you in your own music party. Don't just listen to music, see and feel the music. Toroidal Transformer The device uses a 46W low-noise, low-frequency toroidal audio linear transformer. Toroidal transformers have innate advantages: the toroidal core made with non-oriented silicon steel strips provides high efficiency and low eddy current loss. The corner-free coils result in a more uniform magnetic field and less leakage. Thanks to this power supply, the Warmer R2R is fed clean power that allows it to produce pristine sound. Minimalist Vintage Look Like the FiiO K-Series, Warmer R2R features a classic square and round design. It seamlessly blends vintage charm and minimalist aesthetics, demonstrating thoughtful consideration of both function and form. The grille pattern allows heat to be dissipated more quickly, ensuring the device provides high-quality audio for years to come.  Specifications THD+N: ≤0.053% (1kHz/-7dB@10kQ) Noise Floor: ≤7uV (A-weighted) SNR: ≥114dB (A-weighted) Frequency Response: 20Hz-45kHz Optical Decoding: PCM 96kHz/24bit Coaxial Decoding: PCM 192kHz/24bit Dimensions: 223mm x 213mm x 66mm Weight: 6 lbs In the Box FiiO Warmer R2R AC power cable USB cable Spare fuse tube Quick start guide Warranty card