Hi!
I owned a Arc + 2xEra 300 + Sub gen 3 setup and it was overwhelming on cinematic performance and average on music - I was missing the middle lows in music performance (which are very present on the demo sounds of sonos, so it's likely a DSP thing not hardware).
As Arc Ultra promised better bass due to the new sound force technology, I made the upgrade and... well... I am not satisfied at all. Everything sounds the exact same as before. I did trueplay tuning (tried all three variants), EQ setup etc etc.
I get even a little better performance turning the sub off in the mid los but then the deep subs are missing of course.
I don't get why my SONOS system is performing so bad on mid-lows but only on music... All is perfect on movies... If sonos would only give us more control over music EQ :(
That being said, I was asked by
First try: Old system - everything as usual. I made a diagnostic with it playing a song. - Diagnostic ID ends with ...998
Second try: Ultra with 2x ERA 300. Very good sound quality. Definitely better than “old” Arc. Just missing the sub a bit - Diag ID ...753
Last try: Added the sub to Arc Ultra. Mid-Bass is much lower now. Even lower than with OG Arc. I also tried enabling/disabling sub and whenever I disable sub, the mid-lows get much better. Diag ID ...929
No trueplay involved at all on the ultra.
Maybe you can see anything.
I am already on the 81.1-58210 firmware which should be bass-fixed :D
Similar topics I found (partially trueplay involved)