The best thing you could do is to create a virtual system and post photos of your system and space. Without understanding your system and environment it will be very difficult to help, They need not be glamor photos. Just grab you phone.
Room treatment
My listening room sounds overly dampened, and I want to look at options for making the sound brighter. The room is 4 meters by 7 meters by 2.75 meters. Two walls are mostly covered with bookcases, and two walls are partially covered by curtained windows. The floor has wall-to-wall carpet. What should I consider?