Thanks for the input.
Tbh that sounds a bit scary with the pops, I know myself too well, with time I'd forget to turn it on in the right order.
I've searched for a few weeks now to find the right DAC. To me it's really important to get a unit which also has a pleasant appearance to me. After the research the list is short, which is good imo. I really like the D10, seems to have a fantastic sound and I like it's minimalistic look.
The other candidate is from another category and it's not fair to compare a pure DAC with an audio interface, it's the MOTU M2. I really love the design of it, I found a review on YouTube and the headphone output is excellent, unfortunately I couldn't find a review of the speaker outputs. I know it's double the price, but that would be my absolute maximum. I'm planning to buy the AKG 712 again but I prefer the sound of my active speakers by far, so headphones are no priority.
The DX3 seems to be good but not that excellent and I read about a lot of problems, so it's not an option for me.
But once again, thanks for your explanation!
And if there are some sound impressions (speaker outputs) of the M2, please let me know!
Cheers!