Because I have a manual pull down screen and a Projector (more pics attached with my old floor standers as well).The screen falls down just above the speaker. I had two options with this set up. Option 1 was to place the front LR speakers above subs so that it would be more at a ear height bu then it is 30-50 cms further away from listening position. Option 2 was to place it on the low board and angle it up towards the listening area. I chose for option 2 as it was jelling well with the white low board. the height of the couch is low as well. From sound quality, I am happy.
for critical listening, I plan to buy a yoga mat and I plan to sit on the floor closer to the speakers 1,5-2 meters.