I use the DSpeaker on my subs only, so I am not sure about how you would use the 2.2 setting. When using Dspeaker only on subs set the subs crossover dial as high as they will go and then run the equalize program. As I understand it, if you want to use the DSpeaker on subs and main speakers, set the program to 2.0 - then I imagine you would have to do some adjustment to the subs crossover to get it as good as you want and then run the equalize. Most of this is covered in the manual, but can be a bit hard to find. I have found that they are very responsive (at the factory, not the US REP) to emailed questions.