Chasing the glow: FiiO’s Warmer R2R adds what other DACs leave out

The FiiO Warmer R2R DAC serves up three stems of audiophile catnip for €379/US$399: tubes, resistor ladders and analogue VU meters. That’s a lot of vintage-flavoured kit crammed into a half-width aluminium box. Four JJ Electronic E88CC tubes buffer a balanced analogue output stage. Four resistor ladders, FiiO’s own design, […]