It gets harder every time it gets smaller, so RU6 marks Cayin as masters showcasing how they can make it work. Descended from R01, RU6’s chain of 48 resistors imparts a fidelity to mobile audio not yet experienced.

Your music will be decoded up and down RU6’s¬†ladder of individual resistors, crammed into its thumb-sized chassis over two separate six-layer PCBs.¬†

We pay attention when Cayin implements RU6¬†ala typical R2R¬†‚Äì with a NOS (non-oversampling) mode.¬†That’s double the feat because the precision¬†demanded goes up.¬†Amidst minimal digital filtering, R2R’s analog-like¬†goodness gets delivered unmolested to your ears.

Lovers of reference sound need not fret, however, with¬†RU6’s ability to switch from NOS to oversampling mode for the cleanest possible result. That scrubs any last¬†distortion and artifacts¬†beyond the audible human hearing range, leaving you to just enjoy your music, naturally, via¬†one more Cayin innovation yet.