I took the 200hz horn 5 centimeters higher and it really helped with the reflections of 1400 hz jmlc. I found out, every driver needs a bit more space than I assumed. So the system is now about 13 centimeters higher. When I cut the wheels out after I am happy with their positions in the room, it will bring it down 8 centimeters. Overall height will be close to my first approximation with the drivers being more apart.