Enthusiast II

Era 300 rear driver is silent (with Arc Ultra)

393 replies
24998 views

First things first. This is not a rant. This is an expalation of a problem, which reduces the experience in 3D audio a lot. For background: I'm a sound engineer and music producer and I don't wanna sound arrogant, but I know what I'm talking about. (I'm a really nice and funny guy :D)

So lets get to the problem then :D

NO I'M NOT TALKING ABOUT THE FRONT FACING DRIVER

for better understanding watch this VIDEO

This bug appeared the moment I switched the Arc with the Arc Ultra. Before I made the switch I was on the 16.1 app and firmware. So I don't know if the Ultra causes the problem or the app/firmware. Before the switch everything was running as it should.

So, since there is not much of a topic around this, I'm curious if I am still one of a few who have this bug or one of a few who noticed it.

I made this post in Reddit, but not everyone is on Reddit and the more people know, the faster Sonos can work on it. Reddit discussion

I didn't saw any review which mentioned it.
As you can see in the video, the rear driver is completly silenent when the Era 300's are paired with the Arc Ultra. Also Truplay isn't "sweeping" the driver either. (Timestamp 0:44)
So the mesurement isn't right.
First I thought it could be a feature instead of a bug, but it doens't fit the Dolby Atmos recommendations like this. You won't get sound from "behind" your seating position.
And I remember Sonos self promoted it how it should work, where the rear driver is playing.

DOLBY ATMOS LAYOUT

Sound from side driver/channel should boucing off your side walls, rear driver/channel bouncing off the back wall of your seating position and height channel obviosly bouncing off your ceiling. Thats why you should position them facing forward. At the moment you don't get the immersion that sound is coming from behind you, since the driver is silent.

I tested every setting, played the Dolby Atmos testfile (MKV [TrueHD Atmos] and MP4 [EAC3 + joc Atmos]) from different sources (TV Plex app, Nvidia Shield, from a USB through TV) Same result everytime.

If someone could test this behavior and can confirm this, it would be very nice. Sonos can't fix something they don't know and if most people doens't recognize doens't mean something isn't wrong.

Currently I'm running app version 80.12.04 (Android) and 80.12.03 (iPhone) and firmware version 81.1-58210.
If you don't have this problem, what version are you running?

And last but not least: IF this ever getting fixed, the experience with Arc Ultra and Era 300 will be much better! I love my Sonos products soundwise and Arc Ultra is sounding really good, but it could be much better.

Have a nice day

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Pinned Reply By Jamie A

Hi all, thank you all for your patience.

I was going to post at the same time as Keith on Reddit, however I wasn’t able to. I see that the link to the reddit post has already been copied here, but just to confirm what you've already discovered, this is expected behaviour as explained by our audio team.

I’m happy to forward any questions and feedback you have, as well as forward this as a feature request.

The side tweeters on the Arc Ultra are “overpowering” the bonded rear surrounds.
Side channels are virtualized by both the Arc Ultra and Era 300’s. While you can use “Surround Audio” features to dial in the sound level of your preference there are a few important things to keep in mind:

Surround TV Level and Music Level Slider Behavior: The surround level sliders adjust the sound level for both the Arc Ultra and the surround channels equally. This is the intended behavior.

Using Surround Distance Setting to Adjust Rear Sound Levels: The surround distance setting can be modified to influence the output level from the rear speakers relative to the sound bar:

Setting it to “Less than 2 feet (0.6m)” reduces the volume from the rear speakers.
Setting it to “More than 10 feet (3m)” increases the volume from the rear speakers.

Perceptible Differences: While the surround distance slider adjusts the levels equally for both the Arc Ultra and the surround speakers, testing has indicated that listeners may perceive differences in the sound from the listening position, as described above.

Impact of Trueplay: The surround distance setting is disabled when Trueplay is active, as Trueplay automatically corrects for this. To adjust the surround distance, Trueplay must first be disabled.

There is no audible output from inner woofers when Era 300 is bonded as rear surrounds.
This is by design. The rear speakers are designed to disperse sound throughout the room, rather than directing it to the listener exclusively.

The Era 300 plays rear channel audio through its height array.
This, too, is by design. The Era 300’s DSP (Digital Signal Processing) leverages either the rear height tweeter OR the outward-facing tweeter/woofer to create the intended sound experience. Because of this, when you play the Dolby test track, you might notice that rear height channel as being active during rear-channel playback. This is expected.

Edit: Modified the wording on the 2nd and 3rd bolded points to closer match the wording in the app.

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R

rboard

Lyricist III

I’m curious: is that a measured, empirical “better”, with datum to support the statement, or a subjective view?

let me answer you with another question: let’s say you’re watching a movie and a a car passes behind the scene. Would you be happy hearing the car noise come from the ceiling?

This is exactly right. No one is saying that the surround experience is not good, but it’s should be better based on the 300’s capabilities and the experience that Sonos initially sold us. The Atmos sound stage is designed around have a right/left rear channel which the 300’s were built to and can produce. But now the 300’s simulate that channel by using the rear height and right/left side channels together. Therefore, everything behind and above you sounds the same.

S

sjw

Local Superstar

let me answer you with another question: let’s say you’re watching a movie and a a car passes behind the scene. Would you be happy hearing the car noise come from the ceiling?

If Sonos says this is how it's meant to be, it doesn't matter about industry standards, absolutely they'd be happy. How dare you question a Sonos implementation…..

Until Sonos change and then they ‘listened’. It doesn't matter if they had stayed that way had such things not been challenged/questioned.

106rallye

@superlollo But is this really the case? Yes, with test sounds this is what’s happening, but it would be odd if you’d notice this when playing movies and Sonos would still say this leads to a better experience.

“The Era 300 plays rear channel audio through its height array.
This, too, is by design. The Era 300’s DSP (Digital Signal Processing) leverages either the rear height tweeter OR the outward-facing tweeter/woofer to create the intended sound experience. Because of this, when you play the Dolby test track, you might notice that rear height channel as being active during rear-channel playback. This is expected.”

I’m not saying you may not question Sonos’ choices. But why buy an expensive system if you do not like those choices?

Mr. T

@superlollo But is this really the case? Yes, with test sounds this is what’s happening, but it would be odd if you’d notice this when playing movies and Sonos would still say this leads to a better experience.

“The Era 300 plays rear channel audio through its height array.
This, too, is by design. The Era 300’s DSP (Digital Signal Processing) leverages either the rear height tweeter OR the outward-facing tweeter/woofer to create the intended sound experience. Because of this, when you play the Dolby test track, you might notice that rear height channel as being active during rear-channel playback. This is expected.”

I’m not saying you may not question Sonos’ choices. But why buy an expensive system if you do not like those choices?

Sonos can’t even be consistent with their replies on how Era 300s work in surround mode between Reddit and here.

A

Aidyb

Trending Lyricist I

@superlollo But is this really the case? Yes, with test sounds this is what’s happening, but it would be odd if you’d notice this when playing movies and Sonos would still say this leads to a better experience.

“The Era 300 plays rear channel audio through its height array.
This, too, is by design. The Era 300’s DSP (Digital Signal Processing) leverages either the rear height tweeter OR the outward-facing tweeter/woofer to create the intended sound experience. Because of this, when you play the Dolby test track, you might notice that rear height channel as being active during rear-channel playback. This is expected.”

I’m not saying you may not question Sonos’ choices. But why buy an expensive system if you do not like those choices?

That is not how the Era 300’s were advertised when I purchased mine, the rear channel utilised the inner woofer and side utilised the outer woofer only the height utilised the height tweeter, there was official information on there website and videos explaing that is how they worked, since this FAULT occurred Sonos has taken all that information and videos down and have now dug their heels in with this new narrative, I'm sorry but trying to call people out and suggesting they are at fault for buying them is nothing more than gaslighting....

S

superlollo

Enthusiast II

@superlollo But is this really the case? Yes, with test sounds this is what’s happening, but it would be odd if you’d notice this when playing movies and Sonos would still say this leads to a better experience.

“The Era 300 plays rear channel audio through its height array.
This, too, is by design. The Era 300’s DSP (Digital Signal Processing) leverages either the rear height tweeter OR the outward-facing tweeter/woofer to create the intended sound experience. Because of this, when you play the Dolby test track, you might notice that rear height channel as being active during rear-channel playback. This is expected.”

I’m not saying you may not question Sonos’ choices. But why buy an expensive system if you do not like those choices?

BECAUSE IT WASN’T LIKE THIS WHEN I F****** BOUGHT THE SYSTEM.

Like seriously, stop trolling

S

Snoomuffin

Enthusiast II

@superlollo But is this really the case? Yes, with test sounds this is what’s happening, but it would be odd if you’d notice this when playing movies and Sonos would still say this leads to a better experience.

“The Era 300 plays rear channel audio through its height array.
This, too, is by design. The Era 300’s DSP (Digital Signal Processing) leverages either the rear height tweeter OR the outward-facing tweeter/woofer to create the intended sound experience. Because of this, when you play the Dolby test track, you might notice that rear height channel as being active during rear-channel playback. This is expected.”

I’m not saying you may not question Sonos’ choices. But why buy an expensive system if you do not like those choices?

BECAUSE IT WASN’T LIKE THIS WHEN I F****** BOUGHT THE SYSTEM.

Like seriously, stop trolling

He must be new to the era 300’s lmao.

also someone said the update fixed their era 300’s on reddit. Cant test right now, but idk if this is true or not or if the OP “thinks” he hears sounds but really it’s the woofer working and not the tweeter.

https://www.reddit.com/r/sonos/s/GHmDLMaL52

G

GuitarSuperstar

Lead Maestro

@superlollo But is this really the case? Yes, with test sounds this is what’s happening, but it would be odd if you’d notice this when playing movies and Sonos would still say this leads to a better experience.

“The Era 300 plays rear channel audio through its height array.
This, too, is by design. The Era 300’s DSP (Digital Signal Processing) leverages either the rear height tweeter OR the outward-facing tweeter/woofer to create the intended sound experience. Because of this, when you play the Dolby test track, you might notice that rear height channel as being active during rear-channel playback. This is expected.”

I’m not saying you may not question Sonos’ choices. But why buy an expensive system if you do not like those choices?

BECAUSE IT WASN’T LIKE THIS WHEN I F****** BOUGHT THE SYSTEM.

Like seriously, stop trolling

He must be new to the era 300’s lmao.

also someone said the update fixed their era 300’s on reddit. Cant test right now, but idk if this is true or not or if the OP “thinks” he hears sounds but really it’s the woofer working and not the tweeter.

https://www.reddit.com/r/sonos/s/GHmDLMaL52

I tested last night using a Dolby Atmos test tones video and the inner drivers definitely sound louder. They sound more like they used to when the Era 300s were first released.

"Receive with simplicity everything that happens to you." - Rashi

S

Snoomuffin

Enthusiast II

@superlollo But is this really the case? Yes, with test sounds this is what’s happening, but it would be odd if you’d notice this when playing movies and Sonos would still say this leads to a better experience.

“The Era 300 plays rear channel audio through its height array.
This, too, is by design. The Era 300’s DSP (Digital Signal Processing) leverages either the rear height tweeter OR the outward-facing tweeter/woofer to create the intended sound experience. Because of this, when you play the Dolby test track, you might notice that rear height channel as being active during rear-channel playback. This is expected.”

I’m not saying you may not question Sonos’ choices. But why buy an expensive system if you do not like those choices?

BECAUSE IT WASN’T LIKE THIS WHEN I F****** BOUGHT THE SYSTEM.

Like seriously, stop trolling

He must be new to the era 300’s lmao.

also someone said the update fixed their era 300’s on reddit. Cant test right now, but idk if this is true or not or if the OP “thinks” he hears sounds but really it’s the woofer working and not the tweeter.

https://www.reddit.com/r/sonos/s/GHmDLMaL52

I tested last night using a Dolby Atmos test tones video and the inner drivers definitely sound louder. They sound more like they used to when the Era 300s were first released.

Biggest question is does the inner tweeter still fire from the upward firing driver, or has that been rectified?

G

GuitarSuperstar

Lead Maestro

@superlollo But is this really the case? Yes, with test sounds this is what’s happening, but it would be odd if you’d notice this when playing movies and Sonos would still say this leads to a better experience.

“The Era 300 plays rear channel audio through its height array.
This, too, is by design. The Era 300’s DSP (Digital Signal Processing) leverages either the rear height tweeter OR the outward-facing tweeter/woofer to create the intended sound experience. Because of this, when you play the Dolby test track, you might notice that rear height channel as being active during rear-channel playback. This is expected.”

I’m not saying you may not question Sonos’ choices. But why buy an expensive system if you do not like those choices?

BECAUSE IT WASN’T LIKE THIS WHEN I F****** BOUGHT THE SYSTEM.

Like seriously, stop trolling

He must be new to the era 300’s lmao.

also someone said the update fixed their era 300’s on reddit. Cant test right now, but idk if this is true or not or if the OP “thinks” he hears sounds but really it’s the woofer working and not the tweeter.

https://www.reddit.com/r/sonos/s/GHmDLMaL52

I tested last night using a Dolby Atmos test tones video and the inner drivers definitely sound louder. They sound more like they used to when the Era 300s were first released.

Biggest question is does the inner tweeter still fire from the upward firing driver, or has that been rectified?

It sounds to me like the upward firing tweeter and the inner woofer are both being used to play rear channel audio. The inner tweeter is not being used.

"Receive with simplicity everything that happens to you." - Rashi

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