"I tried running the same YouTube test on my other receiver and all of the speakers except for the sub played the test tones so doesn't that mean that YouTube is outputting at least 5 channels?"
No, it does not. If your receiver or Android box is set to a simulated surround mode, like PLII or Neo, you will hear sound from all speakers. The stereo signal from Youtube is upmixed to simulated surround.
Make sure the Pioneer's Auto/Direct function is set to Auto via your remote. Set the box to HDMI raw. The Pioneer should then detect the bitstream and adjust to the correct sound mode (stereo, DD, DTS, etc).
Last edited by Mojo; 09/21/20 03:34 PM.
