Contributor I

Left One SL surround speaker plays lower volume

13 replies
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Hi,

Recently bought home theatre set: Arc + Sub (Gen 3) + One SL (pair), with hd fury Arcana to go with single source Apple tv 4K 2021. Tuned the Sonos system using Trueplay (using iPhone 12 mini). It sounded really well after tuning. All equipment connected to mesh wifi network with 100mbps bandwidth. Everything worked great for first couple of days.

I’m based in Mumbai, India. After looking on forum, activated Alexa voice services on Arc by changing location to US via weblogin for the account.

Need help with each of the part issues below.

Part A: Noticed that the Sub, LS and RS started dropping (?+?+?) in any combination. Tried keeping them powered off for a while and used only Arc for listening to music. Powering them back on brought back same issue.

Removed surrounds and Sub from room config and added back. Did a full reboot. The issue stopped thereafter. However, it takes anywhere between 40sec to 80sec for Sub and surrounds to get connected online (solid white LED) every time, whereas Arc comes online (solid white LED) in under 10 seconds. Should it be taking this much time to get online every time.

Note: Arc & Sub are within 0.5m of the wifi router & ATV, LS & RS are nearly equidistant from Arc & wifi router - 15-18feet.

Part B: After couple of days, left surround started sounding very feeble as compared to right one.

Tried full system reboot.

After retuning using Trueplay, it plays well immediately; however, once powered off and powered back on at a later time, issue with LS persists. Tried toggling OFF Trueplay and toggled back ON; everything sounds great again. Now every time i have to switch ON the system, i have to toggle Trueplay OFF and back ON.

Part C: With HDFury Arcana in the mix with Apple tv 4K, the Sonos home theatre setup does not output sound. Have to fiddle with TV settings every time. Its really frustrating that the product was marketed for seamless integration with ATV & Sonos Arc. Is there a known solution to this and is there a specific start / boot sequence for these products?

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VishalBAuthor

Contributor I

Hello Corry,

Thanks for your response. Appreciate it. The community definitely is a boon.

Not sure on the support availability comment, as Sonos is now officially available in India through distribution channels and there is a support helpline for the region. Have tried reaching out them as well (call and email), but on sharing diagnostics, the latest response was that HDMI-CEC interference was observed. Responded them back with revised use-case details, yet to hear back.

BTW, without Trueplay, both, LS & RS sound equal.

Taking your advice, proceeded with options; noticed that Arc Factory reset use-case was applicable.

However, since it was hardwired to the router, after its reset, other devices could not be found and therefore had to reset them all.

This still did not solve the issue.

Note, the HDMI-CEC connectivity (ATV, Arcana, TV) wasn’t active at the time.

Not sure whether orientation and line of sight for the LS & RS with respect to the Arc plays any role in Trueplay here. Our living room does not have an ideal shape to go with HT setup. Posting some pics here for clarity (pardon the mess). Arc, LS & RS are all approx. same distance from ground - about 2 feet.

Corry P

Sonos Staff

Hi @VishalB

If it all sounds good without TruePlay being enabled, I would suggest you leave the feature off, or try rotating the surrounds before trying TruePlay again. The problem seems to be related to the position of the speakers and the shape of the room, and what TruePlay does about them.

While it may be easy to purchase Sonos in India and call our technical support line, India is still not an RMA supported region which means if it’s determined that a unit needs replaced, you’d need to ship it first to a location we do support, and we’d send a replacement to the same location which you’d then have to get shipped back to India.

The separation between your speakers isn’t an issue - they’re all well within range.

Finally, the HDMI issue seems to have been resolved with your most recent diagnostics, and that issue would not produce this result anyway.

I think this may be one of those cases where you might be better-off not using TruePlay.

"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein

D

Dysfunctional

Enthusiast II

I wanted to chime in. I have the SAME problem…. I’ve seen others on Reddit also mention it. It’s also my left surround that plays at a lower volume.

My right surround has a wall in the vicinity while the left does not. TruPlay does not compensate for it - without trueplay enabled the surround volume is much more balanced.

You CAN sort of “trick” truplay by holding the phone a certain way or distance from the speaker to attempt to get them balanced - but that sort of defeats the purpose.

I prefer the overall sound profile with truplay enabled…...but not at the expense of having one surround louder than the other. I wish there was a way to adjust L / R balance with truplay enabled - maybe one day!

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