Back wall absorption coverage question

[sophiazz]

The back wall of my studio is 10ft tall, from 3-7ft theres a 6inch deep frame covering 14ft from the left wall to the right (just above the couch). I was thinking of putting in 6inches of Safe n Sound covered by fabric in that whole space directly behind my listening position. Above it from 7ft-10ft would just be a flat wall. Is this a good idea?

[DanDan]

I am not sure I follow your description. But the back wall is often extremely destructive acoustically and therefore one of the most effective places to treat.
https://realtraps.com/art_modes.htm
Worth considering making the treatment much deeper at the corners. Say 2' square.
DD

[Sekhwek]

Nice info great work. emotional shayari