" In case of using parametric equalizer, apply preamp of -7.1dB and build filters manually with these parameters. The first 5 filters can be used independently. When using independent subset of filters, apply preamp of -7.4 dB."
Where in Roon do I apply the setting: preamp of -7.1dB?
Another possibility is to do it all within the Parametric EQ.
Just pull down the slider to the right of the graph until the resulting curve does not exceed 0dB anymore.
The net result will be the same.
I also saw in Roon I can add a Convolution filter, combine the two .wav filters from AutoEq into a .zip file, and then load the .zip file into Roon. Very cool.