Peter Pee’s latest video mostly re-asserts once again what the Sonos Staff have announced already. See the Community Manager (@Caroline V’s) post at the start of this thread. 

I don’t think the user-majority are perhaps disputing Peter Pee’s findings in this, or his other, recent videos on this topic. It is a case that the Arc’s volume curve (not its overall volume output) has been altered and that can ‘mostly’ be addressed with an increase in the volume-slider control. The center channel dialogue has been improved (I’ve certainly noticed that myself) and Sonos have recognised the following issue…

<quote>"We have identified an issue for some users of Arc, Beam and Ray whose configuration includes a Sub (with or without surrounds), who may find their Sub output is lower than desired after performing a new Trueplay tuning"</quote>

Which the users of Beam/Ray (with Sub etc.) can possibly resolve with their Sub level control in the App, but it is suggested that Arc (with Sub etc.) users should switch off Trueplay ‘temporarily’ instead, until Sonos address the matter with an update. 

What is helpful here, is that Peter Pee’s frequency response charts and findings are all confirming what we were all told by the Sonos Staff… @Caroline V.’s post has been there for all to see and read for quite some time, but maybe some community users here have not read/studied that post, perhaps?

So you do not think that you should adjust your surround settings depending on where the two speakers are positioned in your room in relation to your listening position? 

That distance for some Arc users might be as near as 1/2m (2 feet), or perhaps set at a much greater distance away, at more than 3m (10 feet+). So of course you should adjust their volume/settings, if not using Trueplay to tune the system to your chosen room-setup. That’s precisely why the various customisation controls are there in the Sonos App and available to everyone of us.

I would suggest you adjust the volume and adjust the surrounds, particularly whilst the Trueplay feature is temporarily disabled, as per the Staff suggestion, until the Sonos update is released… then go back to letting Trueplay customise the system settings for you and just use the Sonos App customisation tools for very fine tuning to how you like to hear things (if necessary).

Perhaps they’ve been swamped trying to get through the walls of text that a certain user posts quite frequently and haven’t had time to read/study it yet

You must be the only free minded , good natured , everything is positive, and nothing can be wrong…in this forum. 

Yes, I guess my glass is never half-empty.‍♂️

@Ken_Griffiths

You need to look at Peter pees latest video ’trueplay breaks sonos sub’ then perhaps you will understand what so many of us are experiencing.

what you haven’t spoke about is when peter pee speaks about users being affected by bugs where the sub bass is no longer working as before. Trueplay on or off. Im definitely in this case. Im currently listening to dance music with the sub set at +15 and i can hardly hear feel the bass.  It used to shake the walls and i could feel it resonating. After buying the system i should not be subjected to these sort of problems. Sonos is not professional in their update releases. You can give all the excuses you want for Sonos but they have ruined the experience for many people that have spend thousands on their equipment. You are one of the lucky ones that haven’t been affected.

Sonos you suck !!!

Ken, you seem a nice enough chap and it's evident you dedicate a huge amount of your personal time to these forums and to those in need. I'm truly grateful for the time you have taken to respond to me personally. However (and it's up to you if you want to fall off that fence) a lot of us are very wound up, outraged, saddened, whatever you want to call it, with what's happened here. Sonos admitting this TruePlay issue is just one of the few issues that we've got with this update. New volume mapping (seen as intended, so we may have to live with this) but also the sheer difference in sound the Arc itself now produces is what bugs us the most. The fact that suddenly 2 years later after a huge success with many people purchasing it, they have changed what it sounds like and have had the absolute cheek to deem it (in their opinion, not ours, they heard it first) an improvement is utterly shocking in terms of having it forced upon us. Now, you maybe a Sonos superfan and payroll wannabe like some others who are responding to this thread but I personally have invested a huge amount of my hard earned cash into this setup and what's happened in the space of just a 3 minute firmware update is quite frankly disgusting. I know a lot of people appreciate your thoughts and suggestions but please also bear some empathy for the vast majority of us here who feel stripped of their once loved expensive investment. Thanks

I did me best to try to cover the points with the Sub. If you checkout Peter Pee’s 4 videos on this topic and the original post from Staff here, they are each saying the same thing and that is if you have an Arc/Sub combo (with, or without, surrounds) there’s no advantage to increasing the Sub level slider when TruePlay is enabled. (Note: that is different advice for users who have a Beam, or Ray, with Sub combo).

Their suggestions to ’restore’ the Arc/Sub to the 14.10 audio output levels, are that the user needs to switch off TruePlay and increase the volume slider about 10-15% (It was approx 10% in my own case). If that doesn’t return the sound to ‘almost’ what you had before the v14.12 update (or as near as dammit), then it maybe another issue entirely, in which case, I can only suggest calling Sonos and speak with their Support staff..

The Peter Pee videos show exactly (in more detail) what steps are needed to be put in place until Sonos put out an update to resolve the Sub frequency issues and the changes are backed up with his frequency output comparison charts pre/post the 14.12 update. (See his 4 videos).

Peter Pee’s findings in his latest video also now confirm what Caroline V. mentions in her post at the start of this thread. 

According to @Bumper I say too much here already, but I’m only trying to highlight the things mentioned by the Sonos Staff and Peter Pee’s own findings and how the information does, at least, match.

Went to watch a movie and was at a loss didn't even know an update had happened. Just knew something was off. The arc is super quiet now and only sounds right at higher volumes. Somewhere around 50 I can hear voices but below that it's like watching a movie with the audio in another room 

Both points made very well.

To the first, I am surprised at the extent of the change that seems to have been made; this does not look like a tweak. Breaking a system bought for the way it sounds simply isn’t done, especially when the fix is neither optional like Trueplay tuning is, or reversible.

I recall there was a long running problem with the sound from the Base(?) earlier and I wonder if any poster remembers how long that took to fix. I also recall that it did ultimately get fixed. Knowing how long that took may be a useful data point for those afflicted today, that are waiting on Sonos to restore their system to sound like what they bought it for. 

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Hi Sonos,

When can we expect the update that fixes the issue with Trueplay and the sub when paired with the Arc?

I doubt Sonos can really answer this, as it may depend on how their own testing goes - but Sonos very rarely announce their development roadmap in any case. 

Peter Pee’s video regarding this issue perfectly explained what’s happening when TruePlay’s activated.

Looking forward to getting a software update developed, tested and released as soon as possible to resolve the problem I’m experiencing.

I have an Arc linked to Sub with two rear Ones and can’t begin to explain how awful the sound profile is now. So I bought an £800 sub not to now be able to hear it. Sonos, when will a fix be made available? To make matters worse the control for sub level and for true play have now been removed from the app!!!?! Is this because a fix is on the way? 

I have invested heavily over the last couple of years into the Sonos brand and I find it utterly unforgivable that sound profiles are changed to the point that either a product sounds completely different (without the ability to reverse or control this) or in this case for a product to no longer perform as it should. 
 

It’s frustrating that problems like this consistently occur in the Sonos ecosystem and then take months to resolve. By the time all bugs are fixed, we’ll be placed with needing to invest in their next new version of the product… not happy 

Hi Guys,

I did the Trueplay update over the weekend and now I have a Sub 3 turned into a white brick.

My bass has completely gone nothing like it was before.

My setup is Arc + Sub3 + 2 x 1’s.

Volume is now higher as well, just to hear the TV.

What have you done Sonos ?

Maybe see the opening post in this thread of what you need to do to perhaps help resolve your issue.

@Sonos you must acknowledge that there is a problem with the sound profile on setups WITHOUT a Sub after the 14.12 update too.

My setup is Arc + 2x OneSL surrounds. I don’t have a Sub. The sound profile changed dramatically for me after the 14.12 update. In a nutshell: bass is unbalanced and generally lacking. The overall sound is muddy and the system sounds cheap. Surround speakers are much louder to the point of overpowering everything else at default settings (zero). I don’t find speech and vocals to be any clearer. TruePlay doesn’t make any significant difference either way (enabled or disabled, multiple re-runs) although after some of the TruePlay re-runs the bass disappeared completely. And finally, yes, the Arc is somewhat quieter overall, but the overall volume level is easily rectifiable.

Please look into these issues urgently. The 14.12 update affects negatively users without a Sub too.

The Peter Pee ‘earlier’ videos, one of which I have linked below, shows his own independent findings of the Sonos Arc without a Sub (w/Trueplay not-enabled), both before and after the 14.12 update.

His frequency output comparison charts show the areas of change based on his own testing and he offers some suggestions for you to perhaps consider…

https://youtu.be/C7sLAhDXH7A

Thank you for the suggestion Ken. I’m aware of Peter Pee’s videos and I’ve watched them all.

I used to enable TruePlay tuning before 14.12 because I found that it improved bass tremendously and significantly improved the overall balance of the sound profile of my Arc and OneSL surrounds. The update seems to have had a big impact on the sound profile with TruePlay enabled (and as per Peter’s video also with TruePlay disabled). Peter never tested the Arc with TruePlay enabled so we can’t be sure what exactly is going on with TruePlay on setups without a Sub. Plus, Peter never did any tests on a setup with surround speakers. Those seem to be very unbalanced after the update too and TruePlay doesn’t seem to make any difference.

I’ve tried to apply Peter’s suggested adjustments but that really only makes a minor difference. My setup sounds nothing like it did before the 14.12 update.

Before, my setup sounded rich and detailed. Now it sounds, tinny, boxy and muddled. 

The thing the apologists must appreciate is that previously in life, you set up your amp and speakers to sound just how you wanted them. No one could mess them up. Now, at the flick of a switch, the manufacturer has trashed my system and I can't get the good sound back.

It makes owners who care very angry.

Furthermore, the manufacturer has only acknowledged one of the numerous faults, so there's a chance they may not fix all the faults, thus permanently destroying the product.

Which means the only alternative is to start from scratch and buy again which is an expense I cannot afford and don't want to undertake. Or we live with the appalling sound.

Why they cannot put their pathetic corporate pride to one side and give us back the old firmware is a complete mystery. No one was complaining and no one wanted this destruction of their own hardware.

Spot on!

Though I appreciate your feelings about the lost quality of sound, your remark “No one was complaining” is not true; people where complaining about not being able to hear voices clearly on the Arc.

A centre channel volume control is somewhat different to a DSP-fest set to "cardboard box" mode.

There's no issue with adding switchable software options, there's a major issue with implementing a mandatory "sound profile" that imitates the sound from my TV speakers.

I get your point of view; and for the record, I am one that Sonos fans love to jump on as a Sonos hater. All you have to do if you want to see some of that is scroll back on just this thread.

But to be fair to Sonos, there are posters here that have expressed happiness with the change. And typically, those that are not happy are more likely to post here, outnumbering the other lot that are not pissed off. 

That is probably what is coming in the way of a simple roll back.