15.4 update low volume not resolved in Arc

Hi everyone, I am new to the community.

I have been a big fan of Sonos since last 3 years. My existing Sonos system consists of a Beam + Sub+ 2 Symfonisk speakers and I have been much pleased with the performance.

Two days back, I bought a new Arc planning to upgrade my Beam. After around 1 hour of troubleshooting I was able to connect Arc to my Sonos S2 app. But I was totally disappointed with the low volume and bass of sub when connected with Arc. I could see significant volume/bass difference between Beam and Arc when connected to Sub. I have now taken Arc out of my config and made the connection back to Beam + Sub. Initially I thought it would be an issue with my new Arc, but after reading these posts, I understood I am not alone and the Sonos updates are the cause of it.

I am now planning to return the Arc.

Previously I had a Beam Gen 2 + Sub Mini + 2 Ones and now I've changed the Beam to an Arc.

If with the Beam I selected a volume around 20-30 now with the Arc I have to select around 40-50.

I feel the volume is lower than before. Could be because of the same issue your area indicating?

I only  have  ARC 2  so can't  relate  to  other  systems .

Still  find  volume  very low ,volume  better what  some when I connect direct to TV not thru  cable  box ,to watch movies or  You Tube 

Some  cable companies reduce  volume  10-15  percent , was  true  on my system had tech from dealer  in did  volume  checks with  cable   on an off  , Sonos  just thru TV .

That  said  TV  volume  15  alone  .with Sonos Arc 2 to get same had to  go to  38-40  with Cable  Box connected  52-55 .

Shows  effect  of  cable box , Also shows overall  SONOS ARC 2 low  VOLUME overall .

Most  cases  seen  to  have  similar problem when they switch to Arc 2 from previous   bar.

SONOS needs to  rectify this issue  to  keep  their quality standards  high   for  all  devices . Many  customers been  putting up  with this  long  time .

Please  define  Problem so we  can all  truly  enjoy our systems to   quality  expected . . 

Skipped 15.3 and 15.4 and waited till Peter pee to give the thumbs up. Now have updated to 15.5 and the sonos arc and subwoofer have lost punch while the bread 300s have remained the same and seem to be over powering the arc and sub. This is nuts.

Welcome to the club! This problem exists since 15.3. Somewhere since 28th April. I have exact the same problem and Sonos is about to replace my ARC to see if that solves the problem. When I connect my Sub to a stereo pair one’s SL’s the sub sounds perfect like before. When i add the ARC to the same set, the sub drops in power. Problem is escalated to 4th line support now and they can’t find the problem.

Great. Will wait till Monday to call them. I'm assuming they had you uninstall and reinstall everything?

Yes, I have been uninstalling, factory resetting, creating different groups etc. Everything. Been busy since April 28th now. The only clear difference was when I made a setup with a stereo pair of One’s together with the Sub. As soon as I add the ARC the sound of the Sub collapses 

Lord,  I can't spend 2 months doing this.  I already spent months dealing with them during the dreaded sub drop outs. 

When you say you have su  issues...are you saying it isn't firing at all or just barely?

I'm having a hard time hearing, but I think the Move I have sounds fine alme, but it also loses its punch when I group it with the rest of the setup I mentioned.