DACs — FiiO Warmer R2R

The Warmer R2R is a substantial R2R digital-to-analogue converter from FiiO, built with a distinctive resistor-ladder conversion architecture and comprehensive DSD format support. The Warmer R2R brings FiiO's more accomplished current engineering to a serious desktop digital conversion format.

Key specs that matter

The R2R conversion architecture uses a distinctive resistor-ladder approach. DSD compatibility reaches DSD256, with PCM support up to 32-bit/368kHz. Frequency response spans 20Hz to 45,000Hz within plus-or-minus 3dB. Output level is 3.8V balanced or 1.8V single-ended. Signal-to-noise ratio is 114dB, with total harmonic distortion plus noise at 0.053% at 22kHz - a specification approach reflecting the distinctive, characterful R2R conversion philosophy. At 223.5 x 213 x 66.8mm and 2.865kg, the Warmer R2R represents a substantial commitment reflecting FiiO's more accomplished current R2R engineering.

Sound and use context

Expect the distinctive, purist character R2R resistor-ladder conversion is broadly celebrated for, with the name itself suggesting a warmer, more characterful tonal signature than typical delta-sigma conversion.

Pairing

FiiO's own headphone amplifier and integrated amplifier catalogue offers natural, brand-coherent pairings within the same broader catalogue.

Alternatives

FiiO's own K11 R2R offers a considerably more compact, portable R2R alternative within the same broader digital source catalogue.