Utopia is very sensitive to cables (including interconnects), too. Higher conductivity (e.g. silver) is not actually its friend.With some sources I found that too, to some degree. But with the N6ii/E01 on A/B mode there seemed to be a more full and enjoyable signature. Please note, I never use EQ with any device or H/P. But I do use high gain and somewhat high volume settings. ymmv
I've got my Utopia review over here. I don't have a Utopia in house, so won't be able to test with Cayin N6ii and T01 and E02 modules when they come. I look forward to your impressions with all the modules you have.