I just wanted to say thank you, as I was wondering too and have now setup my FW16 with way better sounding speakers 
The bass is actually present now! I didnt notice because of my DT-880 that also lack bass, but man, is this fun to run now!
Edit: On ubuntu I had to install calf-plugins with the non-flatpak version.
On 100% volume I had some crackling with the song “Hull is other people” by Maribeth Solomon from the Sunless Sea soundtrack.