The digital inputs SPDIF coaxial and optical can be used alternately. SPDIF optical also sup-ports 2 channels of ADAT operation, at up to 192 kHz.
When used as USB interface, Class Compliant UAC 2 enables up to 768 kHz sample rate on an iPad. The same is available on computers for high resolution of PCM, DXD and DSD at up to 768 kHz / DSD256.
uses the AKM's AK4493 chip.
Interesting unit.