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Contributor I
February 23, 2015
Question

New LG TV's and 5.1 pass through

I know this is a recurrent topic, but I actually believe it would be very helpful if Sonos address this issue in a concise webpage with continuous updates. Right now the whole forum is full of questions about TV's ability to pass-through a 5.1 HDMI signal. The (so voted) most helpful comment on amazon about the playbar is about the problem of not getting a real surround but an artificial constructions from a PCM 2.0 signal from the TV. And this is also the main issue mentioned in CNET for the review of the playbar.

So, guys, could you make a systematic and compressive study/review of which TV's will work with the Sonos surround system? I'm currently considering to get a full sonos surround pack, but I cant not make a decision before knowing if my LG 65UB930T (LG65UB9500 in USA) is able to pass the signal form the devices connected to the HDMI ports. And I believe this situation is generalized for all potential consumers, many of them buying your product without being aware of the issue with the 5.1 signal. 
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65 replies

Avid Contributor III
May 13, 2018
I have an LG OLED65B7P and a Martin Logan Vision X soundbar connected with optical and get sound dropouts. I used to have a Denon receiver and then a ML Cadence - both with HDMI but I only get sound dropouts with the optical connection.

The LG manual claims the digital output is as follows

May 14, 2018
Getting the newer LG OLED65C7P, and just got my 5.1 components, play bar and play 1's. Hoping LG took care of these issues!!!!
I have the same TV and it works perfectly with the Playbase, gets stereo or 5.1 depending on the source, have never had any dropouts or sync issues (TV v. 04.70.36, Apple TV 4K as source). You just need to fiddle with the TV's settings a bit. Sound Out > Audio Out (Optical/HDMI ARC), AV Sync Adjustment > Off. DO NOT program an external source's remote (like Apple TV, Roku, etc.) to control the C7 first because if you do, when you put in the Sonos you'll get the "no entry" icon popping up on the screen every time you adjust the tv's volume with the other remote. Program that remote for the Sonos directly if possible.
Contributor I
November 14, 2018
Sorry for continuing this thread and I hope that this TV hasn’t been mentioned yet.
Currently I have Sky Q linked to Playbar through HDMI using 2 Play1s as surround sound. The TV ( LG 49UB850V-ZD ) is linked to Sky through 4k HDMI. Been very pleased with quality of sound. Just got Amazon Prime through SMART TV features and, at the moment, I can only play the sound through TV speakers. Will the TV optical output the same quality direct to Playbar? If not, what would be the best way to set-up please?
Thank you in advance,
Tech-numpty.
Airgetlam
November 14, 2018
Take a look at the audio settings for those SMART TV features, it sounds like they're not currently set to Dolby Digital, but something else (DTS as a guess), which is why they'd only be playing through the TV's speakers, and not the Sonos.
Bruce
Contributor I
November 15, 2018
Thanks. Will give that a go.