Likely a case of no linux driver support. How does your setup look like? Do you attach the Esoteric directly to the Nucleus? Let’s see what @support has to say on this.
Esoteric only offers drivers for Windows and macOS to support native dsd. It looks like in this case the manufacturer doesn’t support linux, the operating system on which nucleus runs.
Lumin U1 (MINI) has dedicated support for native DSD operation in latest Esoteric products (K1, N-01, K-01Xs, etc.) with USB DAC input, as well as DoP in older Esoteric products (e.g. K-03X).
K-01X (2014) is a newer product than Grandioso D1 (2013). I don’t see a USB firmware upgrade meant for user installation for K-01X (or any newer product), unlike Grandioso D1.
Grandioso D1 is a dual mono DAC, i.e. you must have a pair of it. It has no SACD/CD transport built-in.
K-01X is a SACD player, you’ll see a SACD/CD slot in front.
I still stand by my initial post. I don’t see any linux drivers for native dsd support on their website. So either the linux kernel has them built-in or not at all. In the latter case, I don’t see how it will ever work, regardless of the firmware for the DAC
Thanks for all input. We finally solve the problems now.
To be summarize, the issue is the clock of K1X seem cannot sync with roon. If you open the clock before roon control K1X, it will keep skipping track. When we do shut down that clock abd operate it again, now they sync together and work perfectly fine.
Thanks for all input