1. Check the loudspeakers selection
Ensure the correct loudspeakers are selected in Primus under Tools > Settings > General > Loudspeaker selection.
2. Check FF calibration
Make sure the loudspeakers/ line out speakers are calibrated in Primus under Tools > Sound Field Calibration and connected to the corresponding speakers plug in the Primus Fitting Unit.
If you are using Primus ICE, only Line Out 1 speakers can be selected as your active speakers