I cannot hear the audio tracks: 24 or 48KHz, 6 channels, AAC (LC) in my digital output. Those tracks can only be downmix to stereo.
First, you have to have a reciever that will decode multichannel ACC and looking at your recievers manual, it doesn’t give any specifications that it does.
Second, and I’m not exactly positive about this, but I believe it has been confirmed, the HUB will not pass-thru multichannel ACC anyway. And even if it did, you would have to have a reciever that could decode it.