On initial set up, the Exakt speakers will not be assigned a channel or filter to use
Setup Exakt Speaker
In this case, it is stating that your Exakt loudspeaker will need to be configured for operation:
Select Channel
Assign this Exakt speaker to Front Left/Front Right/Centre/........
Selekt Filter Version & type
The filters depend on the loudspeaker development. (Exakt design has evolved over the years and these options allow you to decide what version of filter you want to use check Exakt_filters