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FiiO Warmer R2R — a tube DAC

FiiO has introduced a digital-to-analogue converter combining tubes, resistor circuits and analogue level meters.


Photo: official website fiio

The new model has four JJ Electronic E88CC tubes and four FiiO-designed resistor circuits. A rear NOS/OS switch selects non-oversampling or oversampling operation. Three digital inputs, USB-C, coaxial and TOSLINK, are selected from the front panel. Analogue outputs include RCA and balanced XLR pairs. A low-noise 46 W linear supply uses a toroidal mains transformer. A UAC1/UAC2 switch provides broad device compatibility.


Photo: official website fiio

FiiO Warmer R2R specifications

  • Frequency range: 20 Hz–45 kHz
  • Signal-to-noise ratio: ≥114 dB
  • THD+N: ≤0.053%
  • Dimensions: 22.3 × 21.3 × 6.6 cm
  • Weight: 2.86 kg.


Photo: official website fiio