I couldn't find those settings on that thread but that could be me....
I've been fiddling and reading up on frequencies. This page is great.
http://www.dplay.com/tutorial/bands/index.html
... and am now using this. It might look weird with the low bass but it sounds much closer to my high end headphones.
Try it for a day.
Treble +5 (or +4)
Bass 0 (or +1 for some albums)
Surround off
100Hz -2
200Hz -3
500Hz 0
1KHz +2
2KHz +1
5KHz +2
10KHz +3
I know this looks bass light, but 200Hz is actually the low end of the human voice and it's where a lot of muffled congestion arises in this system in my view. It's tuned really bass heavy to start with.
I've spent a lot of time with this and no doubt will fiddle more, but this is working for me.
Let me know how anyone goes if you try it.
Cheers
S