Sub control not working after the updating the Sonos app

Same issue here. Strangely when the rca cable to the sub is not connected the Sub Menu comes up under the Amp settings. However when the sub is connected the Sub menu disappears. 

The Amp is still outputting to the connected sub but the level cannot be set. When changing the bass under the Amp EQ it definitely changes the level of the sub bass so there is still a basic level of control but of course this affects more than just the bass from the sub.  

A Sonos app and/or Amp software bug that needs to be fixed please sonos

Same problem for me.  My “3rd party” B&W siunded great untul this new app -- abysmal.  Sonos has killed my  enjoyment of the system.  Shameful.  Sonos sucks.

The least they could do is publish an acknowledgment and assure their customer base that they are working  on a fix.  Have they done that?  Right now they seem like the Boeing Airlines of the electronics world.  My stereo door has fallen off!

Right above the fold on their Support site:

https://support.sonos.com/en-us/article/the-new-sonos-app-and-future-feature-updates

I have a Sonos sub. Play bar and multiple play speakers. Since the latest update the sub is almost non existent. Even if I try to toggle it on and off it seems to stay at minimal levels. Full volume or off. Bass at 10 or 0. This is so frustrating. All treble no bass. Not my kind of sound. They need to do something to fix this. At least post an acknowledgment. I have a Sonos sub. Not a third party sub. This is not acceptable. 

Sonos amp (latest version). Sub out “works” but the on/off toggle does nothing. Volume does nothing. Phase does nothing Crossover frequency slider works. Third party sub btw. And i now have some low crackling sound from the sub when the tracks are changing on spotify etc. Never had that before the new app. To me it seems like some kind of DSP related bug. 

Echoing @Fa5en  - 

Brand new Sonos Amp attached to speakers and (3rd party of course) subwoofer.  Took 3 attempts just to get the Amp recognized by the system.  Subwoofer plays, but none of the subwoofer controls work.  Volume, crossover, even the subwoofer on/off switch - none of those controls work.

I thought that fix was supposed to come out with the June update.  It is now July 15, all speakers, amps, and controllers fully updated.  Nothing works as it should.  Half the time I can’t see my local music library.  The new Amp sometimes stops playing altogether for no reason.  

Why did I invest in the Sonos system?  It used to be good. It used to be easy, which was important for my wife. Now, as a software engineer, I can’t get it to work. My wife has given up and gives me dirty looks every time she wants to play music or use the Sonos Arc with the TV.

FIX IT.  Better yet, give us back the old working app until you get the new one to actually work.

And a note about the much-vaunted Sonos Ace headphones that started the whole problem.  I was excited for them until I found out that only one with work at a time with Sonos soundbars.  What good is that?  Most of us have spouses and we want to watch together. So, a botched roll-out of a product that is useless to many of us.  Corporate heads at Sonos should roll ….

I agree completely.  My third party subwoofer has had the same problem with my amp for the past month, since the horrible new app update -- but started working again several days ago.   However now other problems have popped up -  with the  Line In function, which seems to work erratically.  .

It’s the age-old adage about the tech industry -  hardware companies (like Sonos) have lousy software and software companies have lousy hardware.  But both have outstanding PR departments.

 And I agree that the headphones look way overpriced for what they can do.   And let’s not forget the $200 speaker stands!!!

Same here, on/off toggle does nothing. Sub adjustments seem to have no effect at all. Running a Sonos amp and sub mini. Totally useless. Also the new app update erased all my sub and eq settings

Looks like this issue has been seen for just over a year now.

I don't know why they would remove such a basic feature but have found it incredibly annoying. I've had to add an external signal booster and the volume control to make my system usable!