I have my Roon Nucleus connect via HDMI 2 to Lyngdorf MP60. When I try to play any thing it shows PCM 2.0.0 as input (even though I have two subs connected to Lyngdorf). Output also shows 2.0.0 No sub used.
If I change output on Lyngdorf to do Neural it shows 5.0.4 (it does use all my bed and overhead channels) but not Sub as input is not sending LFE.
Can you please share a screenshot of your Device Setup options for the Nucleus HDMI zone (Roon Settings -> Audio -> Cogwheel next to HDMI -> Device Setup) and a screenshot of your Signal Path when you have multichannel content playing? In the device setup screenshot, please show the option that shows how many channels you currently have active:
I am not sure if my question came out correct. Most of my content are 2 channel (CD ripped or Tidal). When I stream it shows s channel and only its plays via my L/R speaker. This does not use my Sub.
Thanks for clarifying. In this case, I would suggest you use DSP and perform a Procedural EQ -> Mix that sends the left/right to the back left/right zones and both left/right to the LFE channel. It should look something like this:
To access the DSP screen on iPad, you can click on the volume-speaker icon in the bottom right and press on DSP. That should get you to the screen, but not all options are available on the Roon mobile app, so while you may be able to toggle the option on/off you may need to initially configure the DSP from a PC remote.