Innuos Zen Mini Mk II with an Ayre Codex

oldears

suggest you call into ayre ask for their help

they are great people, always been very responsive and helpful to me when i have inquired or needed help on anything pertaining to their gear

Just run the USB through a Topping D10s on the way to the Codex.
No brainer.

Of course I called Ayre, they suggested the very basic cable.Fuzztone, this is a no brain, NOT helplful reply.

when i had a zen mini i ran the toslink into my codex it was fine (used a lifatec cable)

i try to stay away from usb if spdif connection is available...

well good luck to you, hope you sort it out

Ryan Berry suggested I try a very basic USB cable in place of the Wire World USB-Link cable I had bought from Schiit.  I used the very basic 6' cable in the Codex box which had never been unwrapped. This solved the communication problem with the Innuos, and I was even able to go back to the low latency setting. He said using a USB upgrade cable is hit or miss.For those who have had some issues with USB communications, it might be worth a retry to go basic.A basic design feature of the Ayre USB DACs is the asynchronous Streamlength USB input.