Thank you so much for this, Ferather!
I have a Realtek ALC1220P (MSI MAG B550 Tomahawk, board revision 2.2 - previous versions used the ALC1200 codec), output to Logitech Z906 with both analogue and digital.
After a week of lurking (first I caught up with 100 or so pages of Alan's thread, then the 17 pages here) I pulled the trigger and installed your latest pack, 6.0.9155.2.
It seems to be working.
First of all, a report:
A) With my ALC1220P codec, install option [2] does NOT work but the Main [M] option does. I did not try option [1].
B) Your initial post had this screenshot:
I do not have this DTS tab on either speaker:
Is this an issue? Note that I have not installed any of the presets yet.
Now a couple of questions from a super newbie in the world of DTS:
1) Spatial should be OFF for both speakers, correct?
2) What are the presets for? What do they do? Are they better versions of existing ones? Do I install both Ultra and Ferather packs? Do they apply to both Analogue and Digital, or Stereo only, or what? How will I know they are working?