Now that Amir beated me by a few days/hours (and trust me, I wasn't that happy when seeing it on ASR... but I'm the only one to blame), I think you would agree that I won't be that much in a hurry to release mine. I mean, for visibility/trending purposes, better wait another week. But if you are curious, I now have to publish my measurements about a 3000€ DAC that actually performs miles behind the WiiM Ultra !
Anyway, spoiler alert: his measurements correlate with mine.
He also brings something I'm unable to provide : getting the phono input measured.
Two things. Two cents:
1) Just about every speaker is measured in mono. Whatever flat or not. Otherwise, achieving any standard (not to mention ones as complete as CEA 2034) would literally be an impossible task.
2) I'm not sure which speakers you're thinking about, but you and I had dramatically opposed experience. Since 2020, my two last personal speakers are flat measuring ones, and I never enjoyed listening to music as much as I did in the last four years.
BTW, here's another video: