I feel like I’m back in school but it’s fun! Please be lenient with me, even if you find my questions silly and I make trivial mistakes - I’m a bit embarrassed, I’m definitely not a tech guy!
Tonight I will test the MacBook - DAC connection to make sure it works correctly, then over the weekend I will take the first measurements and I will be happy to share them with you.
As for my room, yes, it’s quite dampened: you can see my renovation step by step in these forum posts: