Hardkernel announced a new DAC for their Odroid C1+ and C2.
In a nutshell:
Based on TI’s high-end PCM5242 DAC chip, it supports 16, 24, 32 bit audio formats with minimal THD+N ratio (0.002%) and dynamics (114dB+) and sampling rates up to 384kHz.
One dedicated S/PDIF interface supports up to 192kHz/24bit resolution via Optical (Toslink) output.
It is supported by the current C1+ and C2 Volumio 2 Images.
More details here: