The Loudness didn't seem to produce any audible difference. Perhaps I had the volume up too loud already. But I did find the 0-6db bass and treble boost. It was hidden. You had to change the tone function from Bypass to On. Found it in the manual \:\) . It's at bass +2 db now, but need more time to tell if I like it or not.

https://docs.google.com/spreadsheet/ccc?...amp;usp=sharing