patch 14.12

I couldn't agree more. Like a computer sub, especially while playing music. Just terrible. 

Have you subsequently submitted a diagnostic, and contacted Sonos?

Yes I have

I noticed the volume needed to be turned up slightly higher as others have mentioned, but the audio clarity all around is better for me. I did do the tuning again with Trueplay and it does sound better than it did before. Having the Beam Gen 2 before the Arc, the Arc’s dialogue clarity didn’t seem as good, but now post-update, after watching a few episodes of a show with Dolby Digital 5.1 format. I noticed a difference all around and definitely the voices compared to pre-update with the same show. My setup is Arc + Sub Gen 3. 

Update 

I have redone truplay and no change I have to watch  at volume level 30 when before I would use 15 

For movie night level it's now 50-55 before was 35 I have never had the volume over 50 before as it was to loud

Again I have had to increase the bass and sub level and when I use the movie night level I have to turn treble down as it is to harsh 

Before the update the front soundstage sounded wider as well if that makes sense 

As for clarity it was fine before I never had to use speech enhancement for dialogue and for the level I use for movie night if I do not reduce the treble it sounds like the way my dad has his TV set up and he was deaf!

In short it sounds awful now 

I also rang sonos and submitted diagnostics 1479794144

They are looking into it apparently 👍

Thanks for letting us know they're looking into it. It can't stay like this. Sounds terrible. Needs to be rolled back for sure. The Arc would not win any awards sounding like this. Absolutely got it wrong with 14.12

I posted in another post but I am also experiencing the same thing. Did TruePlay all over again since the update dropped it. Did not help. Seems like center channel volume has decreased which affected the overall volume. I submitted a diagnostic report as well. Did not call though.

I understand your frustration, but be careful not to assume that every user is experiencing the same problems as you. With my setup, I have noticed no difference with the volume level and can tell that dialog clarity has been improved. I just tested Blade Runner 2049 on Blu-ray (which is known for its impressive bass) and I still experienced the same room-shaking bass that I had before the update.

More than likely, Sonos will not roll back the update but just make some adjustments to address the issues that some users, like you, are experiencing.

@GuitarSuperstar i hope they do fix it I am not looking for a rollback but a fix

Just as 10.06 didn't affect everyone I know this hasn't but it has me

Another thing that I noticed that when I watch a surround heavy movie with helicopters flying round the room the quality of sound appears better from my ones than the arc