I use RME as a DAC and preamp, because I do like the amp part, but not as it is. So, my settings are 0dBf, SD Slow filter with value 1 crossfeed usually for headphones.I'm sure it's been said somewhere but to go through 325 pages would be more time than I have! On all the settings I'm interested how have people set there rme up?
When I use it for mastering music I usually add some presence for 5k and remove some boxiness from 400-600Hz with EQ and take out the crossfeed. I prefer Slow filter beside SD Slow sometimes. And I usually record mixdown and master in 192kHz quality, using RME ASIO drivers. The DigiCheck is handy tool as well.