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So make sure that your device is properly set up to output in those formats. You would only get LPCM 2.0 with a standard HDMI-ARC connection, as multichannel PCM support requires an eARC HDMI connection." It is only possible to get LPCM 5.1 when using an eARC connection. The Soundbar 700 can support " DTS 5.1, DD 5.1 and LPCM 2.0 audio formats it can also support LPCM 5.1 when using an eARC connection.
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If you are wondering, eARC is a hardware difference, not a software one. Due to the limitations of regular ARC, only eARC can currently process these formats." As a result, with an eARC channel, you can enjoy the depth of movie-theatre-quality surround sound via formats such as DTS:X and DOLBY ATMOS. (.) Higher bandwidth also means that digital audio signal doesn’t have to be compressed and is much more detailed, rich and vibrant. "The main differences between ARC and eARC lie in bandwidth and speed. One notable difference between ARC TV's and eARC TV's is that eARC TV's can output uncompressed audio while ARC TV's cannot. Other TVs will output 5.1 via the optical output, but not ARC." This restriction isn't fully enforced, so some TVs do it anyway.
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TVs that can do this are said to have "5.1 passthrough."
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In other words, if you're watching a movie on Blu-ray with 5.1 Dolby Digital or DTS and it's connected directly to your TV (Setup 1, above) your receiver might only be able to get 2.0 audio. Technically, TVs aren't allowed to send 5.1 audio over HDMI. " As great as ARC can be, there is one big issue: 5.1. Be aware that sometimes internal TV sources like apps do output 5.1). Your TV has an ARC connection and not an eARC one and your TV can only output stereo (some are lucky and theirs can output 5.1 via ARC. If the rear speakers DO work when you set-up AdaptIQ but not when you listen to a 5.1 source from your TV. Otherwise, there is a chance the system is faulty and you need to talk to Tech support to get a replacement part. Then you need to check the connections to the speakers. If the rear speakers Do not work when you set-up AdaptIQ, but you can still power them on and add/remove them from the app.
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