In comparison I would recommend only listen to Rockna the whole time and then one day switch over to audio-gd. You have to unburn the audio-gd sound. I was biased in my comparison, even though I wanted to buy and downsize my system.I have had the R28 for a year and use it daily, i bought the R28 unplanned, thanks to a good offer, and since then I love the device.
I got the Rockna on loan, as well as a Pontus 2, since I want to upgrade my R28.
After I have heard a couple of days the Pontus 2, both with the OG firmware, as well as the 1.4, i think Denafrips is not my cup of tea.
From a technical point of view a great device, but gives me when listening to music just not the feeling like my R28.
I will use the Rockna this week, then write my impressions on the weekend.
From now on I will take a week of audio-gd when comparing other dacs/systems