They are talking about a different problem, that the TV always passes 7.1 PCM rather than 5.1...even when the source audio is 5.1. That is a problem that definitely needs to be reported to LG.I noticed one person commented they had 3 CXs & only one of them passed through correctly.
Supposidly they had this issue also with the C9 and fixed it, so hopefully if they are made aware they can also fix it on the CX.
The problem shouldn't make a difference unless you have an AVR though, since the two rear channels will just be empty anyway. Feeding a soundbar 5.1 or 7.1 with two empty channels shouldn't make a difference.
Its because all devices in the chain need to support DTS. But if you decode at the source to LPCM using your Blu-Ray player then you don't need each device to support DTS any more, because you are decoding it at that point, instead of your soundbar.What I can't figure out is why I can get DTS direct to the bar & IF the CX is passing through, it doesn't come out as DTS. Is it because of the 'handshake' between the soundbar & the TV that's causing it to drop the signal to Dolby stereo?
It doesn't matter which stage you decode the audio, you don't lose out letting your player decode it compared to your soundbar. In fact, some devices always defaulted to decode DTS to PCM to default.
I don't think the LG soundbars are all that. From my limited research Samsung are the best if you want the surround experience, that is without breaking the bank and going for a much more expensive Yamaha!
I also don't think the surround effect on Soundbars get that great until you reach models like the Samsung Q800A or Q90T soundbars, the Q900A with rear surrounds actually rivals a decent 5.1 dedicated kit.