Blizz - so which is better out of the Ravenna or i2s hdmi interfaces?
In terms of transports for Ravenna - is that just via standard Ethernet so any PC will do?
A well implemented Ravenna interface should be better. This is because the I2S/DSD can be sent CMOS direct over short PCB traces, as well as synchronous clocking to DAC master. Also It can be powered by ultra low noise LDO off the DAC LPS. Very similar to the SD card transport on the Mirus, but the data stream comes in via Ethernet instead of SD card.
The incoming Ethernet data stream isn't clocked yet so no jitter is introduced, and no reclocking even required. And any noise from external computers/routers can be isolated from noise using fibre.
It also allows you to use which ever computer based media application you desire. So you can take advantage of mobile app GUI's as well as PC based SDM/SRC/DSP.
Any Windows/Mac computer can be used as the transport just the same as with USB.