XC90: Dynaudio premium sound astonished

Hello, after I had the system with ProLogic II in the predecessor XC90, I did not spare any costs to get the Dynaudio-Premium sound system. This wish (and a few more small things) led to the order from the Exec. The speakers, at least in the front, are really great. I am very satisfied with some adjustment over the equalizer at the front. But now my problem comes: While I was sitting in the “sound room” in the 2003-XC90 with ProLogicII setting (fader neutral), i.e. I can hear the music from the left, the center and the right, as well as the music from the back. In the same setting, I can only hear the music from the front. When trying faders all the way to the front or all the way to the back, there is a significant difference in the volume. (loud in the front, quiet in the back) Now my question to other Dynaudio owners: Do you also have this feeling? Can it be that by the other sitting position of the 2nd row in the 7-seater than in the 5-seater, the speakers can be It can hardly lie on the ears, as I hear enough in the front. Mine finds the sound, probably in consequence too little experience with the Dynaudio system in order… For experiences and information I am grateful. Greetings Langer02